Action Doom - ZDoom Total Conversion
This is meant to try and bring back the run and gun feeling from the old 2D shooters like Contra and Metal Slug. In the tradition of such games there are no bullet weapons, only projectiles. And just like Contra every enemy and subsequently you, all have but one hit point, aside from bosses and mini bosses. To make the game feel more 2D and less frustrating, you will never be attacked from behind, and the level is entirely linear. Action Doom featured several first and never before seen Doom tricks using the ZDoom engine. In the second level, the player is confronted with three separate paths to take. One path led on a high speed boat chase which allowed the player to manually control the boat and navigate a river dodging rocks. The third level featured what was to later become the first of a series of ACS mini games: Andrew "Linguica" Stine was responsible for the Doom Racer arcade machine, which was a parody of Rad Racer. In terms of length, it has four levels, with an optional fifth level if played on the "Contra" setting. The WAD's gameplay and shelf life are expanded by the inclusion of five separate paths to take each with their own unique theme; however, none of them have any impact on the ending. It also features six new songs all created by Julian Aubourg.
Infos / Download 1

Aeons of Death - Partial Conversion for ZDoom
Probably the weirdest AND most ambitious Doom mod out there. Through clever spawning scripts, it randomly replaces all enemies and items in any given level (almost all maps supported) with equivalent but randomly chosen items from the history of the FPS genre. A shotgun zombie may be replaced by a crazy old coot from Redneck Rampage, or an uzi-toting demon ninja from Shadow Warrior, for instance. Perhaps even 2d-ified versions of Quake and Quake 2 enemies! There are hundreds of enemy types, and almost as many weapons. It's relatively well balanced, though, and is in active development.
Download v4.20 + Music / Screenshots

Alien Vendetta - Total Conversion
One of the best "Megawads" (32-level episode) for Doom 2 and rather new (released at the end of 2001). The levels are partially interesting (harder than the originals). However, in particular levels 15 and 20 are not necessarily fantastic (in my opinion).
Screenshots/Download ~9MB

Batman Doom - Total Conversion
A total replacement of DOOM 2 characters plus a few more (20 new characters). 25 new levels with hundreds of new textures + 7 interlevels. This has incredible new physics not seen in any other wads plus 9 new weapons and 28 new superb music pieces.
Screenshots/Download ~6MB

BGPA Missions: Liberation - GZDoom Total Conversion
Everything about BGPA exudes quality, it's perfectly themed and all the settings mesh well: beaches, trenches, forests and enemy bases. Each level has a set of objectives that must be accomplished, and you will be helped along by other members of the resistance. You will get to man mounted mini guns, destroy bridges, steal enemy information... as well as slaughter hundreds of Incan soldiers. With BGPA missions and Overlord, Enjay has really created his own unique world that deal with the British/Incan conflict he has created.
GZDoom / Updated Download 1 ~40MB

Blood TC / ZBlud - Partial port of build engine game Blood for zDoom
This is the one and only "BLOOD" Total Conversion for ZDoom. Contains converted textures, flats, enemies, weapons and items from the Monolith Productions game. There are 17 new levels (16 + a secret level). All are fully Deathmatch and Co-op compatible.
Screenshots/Download

Caverns Of Darkness - Partial Conversion
12 highly detailed levels featuring an overhauled engine (new linedefs, ambient sounds, high resolution, etc.).
Screenshots/Download ~7Mb (@ Doom World)

Chosen - ZDoom Total Conversion
Wandering around the eight or so levels in Chosen you will be hard pressed to find even one stock Doom sprite, texture or even a flat. The entire project takes place in an Egyptian setting and everything from the new music to textures and Egyptian themed monsters and sprites convinces you of this. There is an amazing boat ride that looks incredible and the weapons are all cleverly original including arrows and hatchets that stay once they've hit. The enemies range from generic archers to the final showdown with an enormous snake who's tail drags along behind him in a very inventive hack of the Zdoom engine. Chosen easily ranks high this year (2004) as one of the shining stars released, as well as a welcomed addition to a long impressive history of Total Conversions in the veign of Aliens and Batman.
Download 1

City Of The Damned & Apocalypse - ZDoom & Updated GZDoom Total Conversions
Doom meets Blood, with a lot of survival horror elements, and no small amount of puzzle solving and exploration. It may only be a single map, but it's gigantic, and you'll be doing a lot of exploring and working things out. The only downside is a slightly lackluster final boss battle. The successor called "The City of The Damned: Apocalypse" is a ZDoom map featuring resources from the Monolith game "Blood", this time featuring dynamic lights and other nifty sourceport additions in GZDoom. Expect a moody, dark and scary city filled with zombies, cultists and evil demons. In contrast to the first TCOTD, TCOTD:A is not just a Doom wad with Blood textures, it's actually a total conversion, where you will find new enemies, new weapons and a rather unique "sandbox" gameplay. Of course, there are a lot of locked doors and blocked passages, which require finding keys and solving puzzles, but you can move in the city and even around it (and the territory around it is quite large itself) rather freely. It's your choice whether you want to look around the houses, visit the cemetery, go deeper in the city, or walk around the mansion and the church located outside the city walls. Multiplayer was later added in v1.2.
Reviews 1 2 Screenshots 1 Download Original 2MB Apocalypse v1.2 24MB

Cold as Hell - GZDoom Total Conversion
A more survival-horror take on Doom, set in the 1950s at an arctic base where things go to hell pretty quickly. Large and linear, with some nice features like a wounds/bandaging system. The wad features custom weapons, a reloading system, a bleeding system (where the player is losing his health constantly when it drops below a certain ammount), one large hub of about 15 maps, connected together, with the ability to travel between them; new enemies, an involving story with a certain plot twist, notes to read and information to learn before you can move on with your mission. One could think of it as either Silent Hill or Resident Evil with Medal of Honor or Call of Duty. In November of 2008, Cold as Hell: Special Edition was released. Visual effects were upgraded to take advantage of new features in GZDoom. The snow, which had caused numerous problems in the original release, was replaced with the author's weatherFX2 weather system, which used a much more streamlined and user-friendly approach to creating the snow effects than in the previous version. The weapons code was completely re-done, and many improvements were added to gameplay elements. In addition to the bug-fixes and gameplay enhancements, the storyline was re-written slightly, and new voice acting was recorded by several members of the ZDoom community to fill in details of the plot that were previously unexplained.
Screenshots 1 Infos 1 2 Download Special Edition 47MB

Daedalus: Alien Defense - Total Conversion for ZDoom
This megawad (previously known as Doom 2000) was made by the famous developers, TeamTNT, of the Final Doom games and was under development for 4 years until its release in late 2003. It's a sequel to a previous mod called Icarus: Alien Vanguard and looks like an interactive science-fiction movie. It requires ZDoom version 2.0.60 or higher.
Official Site / Download ~19Mb (@ FileFront) / Mirror

The Darkening Episode 2 - Partial Conversion
This is in the style of Quake 2, with its rocky canyons and caves, and tech bases dotted with crates and computer panels. It has a large number of new and customised graphics imported and new music on all 12 SP & DM levels.
Review / Screenshots/Download ~4Mb (@ Doom World)

The Darkest Hour - Total Conversion for ZDoom
7 level hub set in the Star Wars universe, using enemies, weapons, graphics, sounds, and music from Dark Forces.
Download ~4Mb (@ Doom World)

Deus Vult II - ZDoom Total Conversion
Some consider this to be the best wad ever made. The planning of this project rivals that of the Manhattan project. Converted Doomer carefully planned each fight and designed the levels that are choreographed, if you will, to make the fights as interesting and varied as the environment itself. DVII's brilliant design takes the player from location to location, slowly building a story told in the maps. You begin in a secret research lab and journey to Japan, Egypt, Outer Space, Hell, and even Minas Morgul in your quest to defeat the Demonic invasion of earth. Words cannot do justice to the beauty of this wad, but to put it in simple terms: If you do not play this wad, the alleged baby Jesus will kill a kitten. This wad is 100% Chuck Norris approved.
Download 1

Doom 64: Absolution - Total Conversion
Doom 64 was released for the Nintendo 64 and had stunning hi-resolution graphics, new enemies, a new weapon, and item designs, and a whole new look. In this total conversion, there are 35 levels in the single player game, 31 from the original game (only Hectic has been cut) and 4 completely new levels. The sounds and graphics have all been carried over as well as animated fire skies and colored walls. The music has been recorded from the original game, edited, and special versions designed for the TC. Plus, multiplayer games are now possible unlike on the Nintendo 64.
Downloads

Epic - Total Conversion for zDoom/GZDoom/PrBoom Plus
You don't often see Egyptian-themed WADs like Epic, and I sure as hell wouldn't mind seeing more of them if they were the same quality as this. Trying to make a set of Egyptian-themed single player levels with the same level of quality as Epic would make most mappers break down and cry. As typical with Eternal's maps, Epic oozes out more action than you can throw a stick at, and I'll be damned if MAP05 didn't live to the title of this WAD, because goddamn is it effin huge, and well... epic, obvious pun aside. There's also some really cool usage of Boom features, and creative use of flame torches to simulate run-down cars being caught on fire; isn't that a cool enough r reason to check out Epic? It has 5 levels and requires a Boom compatible port like Zdoom 2.2.0.
Download ~1312kb (@ Doom World)

Eternal Doom - Total Conversion
A set of really huge and beautiful 32 levels with awesome atmosphere, details and rocking music. Many are in a more medieval style compared to other wads (thanks to Hexen textures)and some puzzles are not completely obvious.
Review / Download ~9Mb (@ Doom World)

Hell Revealed 1 & 2 - Total Conversions
The original has the reputation of being a very difficult set of maps but additionally it has a lot of good traps and secrets to be found which add up to making it a classic. The sequel was just released on 12/31/03.
HR1 Review/Download ~2MB (@ Doom Underground) - HR2 Screenshots Download ~2MB

Knee Deep in ZDoom - Total Conversion for zDoom
The entirety of Doom 1 Episode 1 remade using every feature of the ZDoom engine. Levels are long and involving, with tons of new areas inbetween the familiar looking rooms. Many new enemies, a few really cool bosses, and some especially impressive effects cribbed from Doom 3 - the areas where Hell starts 'bleeding through' into the base are excellent.
Screenshots / Download

Legacy of Suffering - Total Conversion for GZDoom
We all know that the Doom movie was terrible. So when this mod based on that movie is refreshing to find that it's one of the best Doom mods. The coolest gun in the game is the quadruple barrel shotgun. It has nine brand new maps, Coop and DM modes available, SkullTag - Invasion mode (Demo), new weapons, smarter monsters, new visual effects and high-def textures. LoganMTM sets up a genuinely creepy atmosphere through use of ambient noises, spooky sountrack, and good use of lighting effects. This mod definitely shows its influences from Doom 3 and Quake 2. There are quite a few cheap scares a la Doom 3, but it totally works for the mood. The gameplay style of this mod is a mixture between invasion and slaughter, and easily has provided me with some of the most action-packed gunfights ever in a Doom mod. The addition of new enemy AI makes the bad dudes a bit more tricky and unexpected. Overall a well rounded, scary and atmospheric map set.
Infos / Screenshots/Download

Marine Doom - Total Conversion
Marine Doom is a project of the Marine Corps Modeling and Simulation Management Office (MCMSMO) and was the first time a computer game was used for military training purposes. MCMSMO adapted the game Doom II for training four-man fire teams. The game teaches concepts such as mutual fire team support, protection of the automatic rifleman, proper sequencing of an attack, ammunition discipline and succession of command. Doom II's characters have been replaced by Marines and enemy soldiers, and real-world representations have been used to create backgrounds that reflect real-world tactical situations. The game's combat environment includes buildings, bunkers, holes, berms, tactical emplacements, concertina wire, etc. The terrain can include ditches, hills and other small features. Players use digitized images of M16A1 rifles, M249 squad automatic weapons and M67 fragmentation grenades against enemies in a variety of terrain and building configurations. Simulations can be configured for specific missions, e.g., rescuing American hostages from an overseas embassy. Digitized embassy floor plans can be incorporated for use in training for rescue missions. Doom supports four players on a network. Each would receive a text file that specifies training objectives and provides information on potential enemy and friendly units. Each member has a different view of the battlefield on his screen. Observers would view an overhead schematic of the battle site on a mapping module. The team leader would pause a simulation at any point to evaluate a phase of the operation. System requirements: Doom II version 1.9, Dehacked 3.0 and the marine1.wad file.
Info / Download ~2MB

Memento Mori 1 & 2 - Partial Conversions
Memento Mori is a superb replacement of all 32 DOOM II levels created by The Innocent Crew, TiC, a group of over 20 of the best WAD designers around. It was more than four months in the making and has both new textures and new music for all the levels. Memento Mori 2 was another even better set of levels which have more of a cohesiveness and flow.
Review / Download - #1 ~3MB #2 ~4MB (@ Doom World)

Mordeth - Partial Conversion
First episode of unfinished megawad, which has some of the best and most consistent atmosphere of any wad. Gameplay is perfectly balanced too.
Review / Screenshots/Download ~2MB (@ Doom World)

Paranoid - GZDoom Total Conversion
This is an 8-map hub for GZDooM. It is a Half-Life mod with new enemies (including new enemy behavior with DECORATE), several new weapons (i.e., new behavior, not just replacement graphics), models, graphics, menus, skyboxes, and much more. In the role of Dr. Rolf Bellmer, you will explore previously unseen areas of the Black Mesa Facility. With true 3D architecture integral to the design of the maps and the whole theme being very much in the style of the original Half-Life, Paranoid seeks to capture a great deal of the feel of Half Life-like gameplay but in the Doom engine. You'll explore scientific laboratories, storage warehouses, water treatment facilities, cavern & canyons, etc. As you move from objective to objective, you will return to some maps you've previously visited. Along the way you'll be assisted by an unobtrusive hint/message system that can be called-upon via strategically-placed walkie-talkie radios. Most areas are designed to have a realistic look and design, with a multi-storey office building, a multi-storey prison facility, railway bridges, cafeteria, toilets, etc. The gameplay involves some friendly non-player characters, scripted fighting between alien and human enemies, and a fair amount of running & gunning.
Screenshots / Download ~80MB (@ Official Site)

Phocas Island 2 - Total Conversion for GZDoom
Using the superlative modifier "best" is certainly a strong word to use when describing anything, especially when it is as as subjective as a game. Phocas Island 2 certainly is not Doom; it is more akin to a first person Sierra adventure game if anything. Attaining the title of "best" is no easy feat when you are competing against names such as Batman Doom, RTC, Scythe 2, Suspended in Dusk... among many others often touted as "best". It just feels otherworldly, something highly regarded when looking for interaction with a game. There is no "Doom" in it; in fact, there are hardly any FPS elements in the game. The play is divided into an adventure game style where you must locate objects and places across the map and solve a number of tasks and puzzles to advance the story and escape the island. You'll visit breathtaking and extraordinary locales, like a hollowed out tree stump and a forest with a brilliant canopy overhead, underground mushroom caves, and ancient ruins. The puzzles are challenging but not impossible, and there is a real sense of accomplishment when you complete a task or find a new item.
Infos / Download ~7MB (@ Doom World)

Playstation Doom - GZDoom Total Conversion
This is a conversion of the Playstation version of Doom which had coloured walls, translucent lines, atmospheric music, and cool sound effects. The license screen, loading screen and badass burning title screen are all present, along with the great theme tune. The fire sky, dark status bar, and enemy differences are all there. It includes the Nightmare Spectre, and HUD (with head explosion animation).
Download plus Music Addon ~6+48MB (@ Official Site)

Requiem - Total Conversion
This is considered one of the best megawads ever created. It includes a large amount of new textures, flats, music and graphics as well. As well as very complicated layouts and good use of textures, they create a very good ambience with good use of lighting to create a sinister atmosphere where needed.
Review / Download ~4MB (@ Doom World)

RTC-3057: Hub 1 - Total Conversion
Boasting an actually storyline, a massive logbook the player can read at his or her leisure, gorgeous level design, and some of the most fantastic music this side of any modern game. Elemental music will begin at tense moments to build atmosphere, scripted events occur around every corner as beautiful new textures and sprites adorn the levels all of which push the boundaries of an already ancient gaming engine. Many Doomers were left with feelings of confusion as the storyline abruptly ended with the ending tying up few loose ends, and the planned two other parts were never completed.
Screenshots / Infos / Download ~54MB (@ Doom World)

Scythe 2 - Total Conversion
The last dozen maps are not only breathtaking for the sake of the wad itself, but all maps that have been made. Overgrown bases covered in vines and weeds, vast gothic cathedralesque locales, and sinister hellscapes are just a few of my favorite themes. The last few levels of this megawad are beautiful. Some may be turned off by the Hell Revealed style gameplay towards the end, but remember, monsters can be turned off as well. Do yourself a favor and play Scythe 2 now, if you haven't already. And if not, what the hell is wrong with you? Followup: In 2009, Erik Alm completed the final 3 maps that were missing from this build, and various bug fixes. This only reaffirms Scythe 2 as one of the best projects available for Doom... whether it be 2005 or 2009.
Review/Screenshots / Infos / Download ~7MB (@ Doom World)

Simplicity - ZDoom Total Conversion
Simplicity bridges the gap between enhanced levels with the aid of modern engines, and the simple gameplay that made Doom so addicting. The title, Simplicity, comes nowhere close to describing Agent Spork's masterpiece, as these levels are anything BUT simple. Simplicity's architecture is phenomenal, and has that special touch that lets you know it's a SporkMap(tm). Transparency is used to gorgeous results, slopes are used but integrated as to feel natural, and several new monsters make simplicity feel like an official Doom addon. Too often when a wad has "Requires ZDoom" I brace myself for particle fountains and ugly on screen messages from , but AgentSpork has managed to seamlessly integrate the power of ZDoom with the "simplicity" of the underlying Doom engine. Coupled with one of the most creative secret levels conceived for Doom, Simplicity is easily one of the best. Ultimate Simplicity is a megawad comprised of 3 episodes, including 30 maps. It is essentially an overhauled version of the original Simplicity, with vast improvements made overall.
/ Download ~7MB Ultimate Simplicity 16MB (@ Doom World)

S.T.R.A.I.N. - Total Conversion
Another good pack, STRAIN includes 32 new levels, all new music, and a complete story which carries through the levels. It also contains 100+ new textures, and many new baddies, weapons, graphics, and sound effects.
Screenshots/Download ~5MB (@ Doom World)

Suspended in Dusk - Partial Conversion
A set of four levels created by Espi, he has squeezed every last ounce of what the Doom engine is capable of to give us this masterpiece. Sliding doors, 3D spacecrafts, blown open walls, floating crates... this sounds like a checklist from a JDoom or ZDoom mapset, but you would be wrong to assume so. Its largest saving grace is the plethora of textures and new artwork. It's no surprise that a map by Espi would feature breathtaking visuals, but it's impressive just how well they mesh with the already available stock Doom textures. Creeping along platforms that appear to be "suspended in dusk" and rising above bottomless chasms with broken pipes hanging around you is an experience I cannot describe; you must experience this wad for yourself.
Download

Ultimate Simpsons Doom - Total Conversion for ZDoom
Originally the Simpsons Doom was a popular conversion due to fans love of the characters. A talented artist, Myk Friedman, however has now used his superior artistic skills to create superb new animations including deathscenes for all the characters.
Official site | Download ~4MB (@ gamers.org)

Ultimate Torment & Torture - GZDoom Partial Conversion
It's comparatively short (a handfull of huge levels), but the amount of detail and polish is astounding. Great art, music, TONS of new enemies and a lot of content impressively and convincingly crossported from Quake 1. Fantastic level design.
Download

Vile Flesh - Total Conversion
This megawad was created by G.W., originally intented for Boom compatible ports. It features: 3D water & lava, 3D bridges, OpenGl lightings, Boom features, FraggleScripting for the third episode. The first levels are quite simple, but, as you progress, maps become more and more complex, more and more puzzling, longer and longer. Anyway maps don't ever lack puzzles, which gradually turn trickier and trickier and more and more interesting.
Download 5MB (@ Doom World)

Wolfendoom - Total Conversion
These are Wolfenstein missions ported to DOOM II, creating what is essentially an improved and updated Wolfenstein. Each scenario is painstakingly recreated as a DOOM II WAD, complete with all the Wolfenstein textures, objects, sounds, and enemies. The result is a total conversion, a complete Wolfenstein experience which takes full advantage of the DOOM engine. There are even ambient sounds. In addition to recreating the original missions, brand new scenarios such as Operation: Arctic Wolf (considered the best pack), Operation: Rheingold, and the Astrostein Trilogy were created which go beyond the original scope and concept of Wolfenstein.
Official site Operation Arctic Wolf: Review / Screenshots/Download ~6MB (@ Doom World)

Aleph One - Frontend for running M1, M2, MI and scenarios.
Marathon is a three-part game series for the Macintosh computer published by Bungie Software (who later went on to make Halo), consisting of Marathon (1994), Marathon 2 (1995), and Marathon Infinity (1996). They are first-person shooter puzzle games with Doom-like graphics, set in a scifi universe dominated by deviant computer AIs and (unlike Doom or Quake) Marathon was ahead of its time, having an immersive plot ran through the series of games. The engine sports an impressive physics model that allowed grenades to arc through the air and the player to waft gently across wide crevices in low-grav maps (revolutionary, as Quake wasn't released for another year and a half). The mod (called scenarios) community was so active that Bungie, the game's makers, sat up and took notice, releasing professional tools publicly so that the users could create their worlds with even greater ease. Only the Marathon 2 game was ever ported to Windows 95. On January 17, 2000, Bungie Software released the source code of the MacOS version of Marathon 2. Since then the game has been enhanced and extended, under the name of "Aleph One", by a team of developers on the Internet. Two of the biggest improvements to the game so far are the addition of OpenGL rendering and a built-in scripting language. On its own, it's not useful since it doesn't have a game world (a mod "scenario" in Marathon terms) - it's just a runtime. You need to download scenarios files to work with it. The individual games Marathon, Marathon 2 and Marathon Infinity can all be considered scenarios and run on Windows through Aleph One. In contrast to modern games where you first install the game, then install a series of scenarios and finally select the active scenario from within the game, with older games such as Marathon (and hence, Aleph One) you actually replace the game's original scenario files with the files of the scenario you want to play. Now that hard drives are huge, it's practical to have one copy of Aleph One for each of the scenarios you want to play. If you use it to play M1, M2 and MI, you'll probably have three installs of Aleph One side by side.
Marathon Series Bungie official site - Aleph One Screenshots/Info/Download - Game Manual Download @ Source Forge ~1Mb - Marathon (on Windows) for Dummies FAQ Windows SDL One-Click Installers for Marathon Trilogy.

Devil In A Blue Dress - Aleph One Addon
One of the first full campaign mods for the original Marathon, continually updated for the newer versions. Nice and big too. It's both a level pack and a "what if" reimagining of the story. A completely new storyline, 20 brand new maps and original artwork made Devil In a Blue Dress the first behometh scenario ever released for the marathon engine.
Screenshots / Download @ Source Forge ~108MB

Eternal - Aleph One Addon
Eternal's story is a direct, unofficial sequel to Marathon Infinity, the last installment of the original Marathon trilogy. While Eternal is a near-total conversion, featuring all new levels, textures, landscapes, weapons, and music, as well as a completely revamped user interface, most of the characters are retained from the original games. There's fifty-two new levels, some revisiting familiar locations from the original Marathon trilogy. Over six hundred fifty new high-resolution textures, including a dozen original landscape textures, from a variety of human and alien environments. Eight all new weapons, many of which must be scavenged from your defeated enemies. Over a dozen tracks of original music, including many remixes of your favorite tracks from the original Marathon. And several new creatures and characters, alongside the complete cast from the original trilogy.
Infos / Download ~234MB

Excalibur - Morgana's Revenge - Aleph One Addon
EMR is the sequel to the very popular Devil in a Blue Dress scenario, the MMMG's first scenario release. Battle Morgana's minions across time and space, wielding weapons and encountering characters true to each time period. It weaves a tale of truth and honor, knighthood and bravery, darkness and treachery. Come challenge your friends in environments ranging from untamed raptor-infested jungles, to castle arenas, to war-torn streets of the future. Originally released in March, 1997 for the Marathon 1 engine, it was then released in 2000 for the Marathon Infinity engine, and finally released in 2007 for the Aleph One engine. It has new textures, sounds, physics, graphics, storyline, maps and interface, and musical scores. The scenario mixes sci-fi and medieval themes. EMR 3.0 is a unique scenario based upon the Aleph One (Marathon) engine. It is a first-person action adventure game, featuring an epic and in-depth story line. As a Federation Marine resting after your last mission, you start aboard the exploration class Starship Kronos where you learn that your real mission has yet to begin. You are re-acquainted with the AI Merlin, who introduces you to Kronos time traveling technology, and reveals your new mission: to save mankind from the clutches of Morgana and her minions. Through untamed raptor-infested jungles, castle arenas, and war-torn streets of the future, you will wield weapons from all time periods - including the Sword of Power, Excalibur - in an effort to thwart the diabolical plot that unfolds. The EMR adventure, spread across 42 solo levels, weaves a tale of truth and honor, knighthood and bravery, and darkness and treachery. EMR also delivers 27 adrenaline pumped network levels. EMR immerses you in an amazing new world, creating an addictive, fun and unique gaming experience.
Infos / Screenshots / Download v3.01 @ Official Site ~215MB

Marathon 2 Shapes For Aleph One - Aleph One Addon
Ever wish you could play Marathon 2 using custom Infinity physics models (like "Tophet's Physics Models v3") now that Aleph One SDL runs M2 for Windows? Unfortunately, the original M2 Shapes lacked a couple monsters and several color types for the existing ones, and the Infinity Shapes gives the M2 scenario some funny textures in places. Fix it with this Marathon 2 Shapes update for Aleph One SDL. Works for most M2 scenarios too.
Download @ Orbital Alarm

Sounds & Total Texture Enhancement Packages - Aleph One Addons
The Sound Enhancement Package v1.0 contains the following features: - New Sounds! Including more sounds per class and the 'Lost BoB' sounds (only the nice ones though). Many new sounds are just modified original Marathon sounds, like pitch changes or other effects. - Improved sounds: Sound settings have been improved and many sounds have been converted into a higher quality. - Stereo effects added: Some of the ambience and random sounds have been modded and converted into stereo sound files. These are: the Creak, Siren, Loon and the Surface explosion sounds. The Total Texture Enhancement Package v3.0 has all the textures from Marathon: Infinity, Marathon 2: Durandal, and M1A1, now all in 24-bit 512 x 512 high-res versions! (absolutely every single one of 'em). Very easy to install because it simply replaces the old texture enhancement pack by just dragging the files. Now, if you got the latest version of Aleph One and a nice video card then this is what you need to play Marathon at it's best! Because these textures are such a high-quality (millions of colors) they will also slow Aleph One down in performance, if you got a low-end Mac you may want to give Aleph One more memory. Also, this package requires at least 32mb of VRAM to run properly.
Sound Enhancement Download / Texture Enhancement Download

Marathon 1 Aleph One (M1A1) for SDL - Source Port
The official SDL version 1.2 of the M1A1 scenario (38Mb) for all SDL flavors of Aleph One - a port of the original Marathon to Aleph One. This contains all 27 original solo levels, all 10 original net levels, and 2 bonus solo levels. It fixes the Looker crash that plagued earlier versions of A1 SDL. Music is already included. The newly reworked alternative mp3 tracks from Chibi-Usa are compatible with this scenario. The version for SDL v1.2 maintains compatibility with the Mac version. The v1.5 is a Special Edition for Windows only (17Mb). It has 3 bonus solo levels, and one bonus net level. It has fifteen 8-bit and 16-bit Chapter screens (including the original seven), an additional Moonscape texture, and a few extra monster types. If you want the Special Edition M1A1 music, you must download the M1A1 MP3 tracks (48.9 MB Zip format). This version does not maintain compatibility with the Mac version like the official SDL release does.
Downloads @ Orbital Alarm

Marathon Evil, Marathon Fell, Marathon Red - Marathon Infinity Scenarios for Aleph One
These classic scenarios have all been converted to run on Aleph One. Marathon Evil is an incredible new scenario that creates an all new application that allows the Marathon Player to enter an entirely unfamiliar dimension. With a modified application, new physics, new shapes, new maps, new sounds, new soundtrack, and new images. Marathon Fell has 35 solo levels and 5 different endings. The work of predominately one person, Fell was an extremely playable, engrossing scenario. This is Fell 1.2 with 11 new levels added to the end. Marathon Red creates bleak levels with many new monster enemies creating one of the scariest playing sensations ever at the point of its release.
Marathon Evil info - Marathon Red info download Aleph One Scenarios @ Orbital Alarm - Other scenario downloads @ Bungie.org Windows SDL One-Click Installers for multiple scenarios.

Missed Island - Aleph One Map Conversion
This is a remake of a significant portion of Myst, using some pretty hardcore engine tricks. Jason Harper is the Bungie Contest winner for best use of Forge. His map "Missed Island" is a classic of Forge tweaking. It was included in the Marathon Trilogy Box Set, in the map collection CD. An Aleph One conversion was later done by Craig Caroon.
Screenshots / Download @ Bungie Archives ~3MB

Rubicon X - Aleph One Addon
This continues the story of Bungie's Marathon trilogy. First released as Marathon:Rubicon in 2001, four years in the making, Rubicon was the largest Marathon scenario project ever created. To give some sense of the magnitude of this scenario, Rubicon featured: 360+ new textures, over a dozen new characters, tons of new scenery, 8 new weapons, and more solo levels than any other Marathon scenario to date...all wrapped into a nonlinear plotline that can be traversed in any number of ways, featuring different endings based upon a player's choices over the course of the game. Randy Reddig, the texture artist and a mapmaker for Bungie's original Marathon Infinity, called Rubicon's visuals "...the nicest I've ever seen come out of Marathon." If you've ever played any Marathon game, Rubicon will reignite your love for the series. Rubicon X is a complete overhaul of the original. It features all new high-resolution artwork, new and updated maps, and enough surprises to feel like a whole new game.
Download @ Official Site ~124MB

Tempus Irae - Aleph One Addon
This new release of Tempus Irae and Tempus Irae 2: The Lost Levels has received a major artistic restoration in the process. Every texture has been recreated - mostly done with Cinema 4D - in hi res splendor. To further enhance the beauty of the game, an additional download is available to add breathtaking hi res landscapes. All additional Maps created by the members of Nardo, 3rd party Tempus Irae maps, as well as those entered into the Tempus Irae Mapmaking Contest have been converted for use in Aleph One.
Screenshots / Download ~97MB

WinROTTGL & High-Resolution Textures - Enhanced Source Port & Graphics Enhancement
While the original game was working in DOS only and with resolution limited to 320x200, WinROTTGL offers high-res graphics (640x480, 800x600, 1024x768 and more) with full Win9x/ME/2000/XP and OpenGL support. This also means you can use custom high-res graphics which look far better than the original tiles used in the game, e.g. 3D models instead of 2D sprites for objects/enemies or highres skyboxes/textures etc.
Download v1.48 / Rise Of The Triad WinRottGL v1.48 & High Resolution Pack v1.6 (upped by Scaryfun)

System Shock

System Shock Portable - Modern Remake
A remake of System Shock with new sounds and graphics, and that works on modern systems.
Download v0.9 @ Strangebedfellows.de 63MB

 

1991-93 1994 (1995) 1996 1997

Hexen

jHexen with Doomsday - Source Port
See under Doom - jDoom for explanation. Very Highly recommended!
Info - Screenshots - Downloads

 

Dark Forces

DarkXL - GPU Accelerated Dark Forces Extended
DarkXL is a Hardware Accelerated remake of Dark Forces. It requires the original game data, and will fully support the original game - with cutscenes, briefings and other features. In addition user mods and levels will be supported. The point of this project is to allow people to play Dark Forces in high resolution, on windows in either “classic” mode (no new features) or “extended” mode. All modes will benefit from newer control methods like mouse look, high resolutions and color depth. The extended version will get new features such as real-time lighting, slopes, dual adjoins, vertical adjoinds, better model support (md2 and/or md3) and more.
Screenshots / Download

Ultimate Doom

2002:A Doom Odyssey - Total Conversion
After nearly 2 years of work 2002 A Doom Odyssey, an add-on pack for the Ultimate Doom, is out. It contains 4 new episodes each with 9 all new high quality levels and an all new musical soundtrack.
Screenshots/Download 4Mb

Crusades - An Unholy War - Ultimate Doom Episode
Crusades - An Unholy War is a 9 level episode which replaces episode 4 of Doom 1.
Download 0,8Mb

 

1991-93 1994 1995 (1996) 1997

Descent 2

D2X-W32 - OpenGL Source Port
D2X is a port of Descent 2 to OpenGL. It is an open source project and has undergone a lot of enhancements compared to Descent 2. With it, you can play Descent 2 even at a resolution of 1600x1200 (double the original game's). There is even support for running Descent 1 levels on Descent 2.
D2X-W32 Official Site / Info

Glidos - 3DFx Glide Emulator
3DFx video cards (now bought up by nVidia), used a proprietary technology called Glide which had an enabled runtime developed which allowed certain games to be played in higher resolutions and with texture filtering under the DOS system. Glidos, allows old Glide based games to run under Windows along with VDMSound, a Sound Blaster emulator for DOS games. It also supports Tomb Raider, Tomb Raider Gold:Unfinished Business, and Blood.
Info / v1.38 Download

 

Duke Nukem 3d

Starship Troopers - Total Conversion
19 months, it took, to finish this excellent addon. For fans of Duke or the film Starship Troopers it's a must play, for those that loved both it's a blessing. Before you jump into the game you must know that this TC is meant for pros. The lowest degree of difficulty is "normal". In the first mission one must escape from a severely damaged spaceship. There are no opponents there yet. However, some puzzles and falling dangers remain, as well as explosions - and also sometimes a dead end if you rush through it :o). If one has reached the rescue capsule, you find yourself soon having to make a forced landing on a planet. Then after fighting through to a rendezvous point you find yourself on a base and receives also in the Command-Center his first order. One discovers by wandering around the base various things, numerous guards and also usable protection. I have not played through the addon even yet, thus you must be patient until someone contributes a review, but as far as I can judge this, one can not go wrong with trying this out. It may edge out Platoon as the best Duke addon ever.
Screenshots&Reviews Bugteams Duke3d Page MSDN | Download @ ftp.mancubus.net 20Mb

Ages In Time - Total Conversion
A huge medieval conversion for Duke Nukem Atomic Edition with 4 new episodes (1 for DM) that was one of the biggest conversions released at the time. All weapons are replaced; there are swords, bows, crossbows, poison bombs and spells (lighting, fire and life stealing). New enemies include battle knights, mages, spiders and dragons.
Download v1.0 @ Fileshack ~19Mb Patch v1.1 Duke Nukem Expansiones(XP) ~184MB includes: 00duke, mystique:ages in time, duke in LA, duke tournament, dukey nukey, FUSION, layre, pussycat(XXX), whitehouse strike, when scum returns (upload by 3Spot)

Crucial Conflict - 3-level episode
This does a nice job of making Half-Life type maps with interesting goals. The story is about an alien invasion and you go through a storage facility, a water base, and the ruins of Rotterdam in the levels.
Review | Info/Screenshots/Download @ 2maarten.com ~1Mb

Duke - It's Zero Hour - Total Conversion
There are an atmospheric, challenging and slick 11 levels in this once-slated to be a retail product via WizardWorks. Each level starts off in a little HQ and you run down a hallway to a computer which has a mission briefing. The game's developers slaved for over a year to craft 11 eye-catching game levels that feature all-new monsters, weapons, MIDI music, and more new sounds.
Review | Download @ Filefront ~6Mb

Duke Meets Doom - Total Conversion
This conversion imports textures, weapons and enemies from Doom 1 & 2 and some from Shadow Warrior. It has 27 levels over 4 episodes.
Reviews 1 2 | Download @ Gamers.org ~8Mb

The Gate - Total Conversion
This has 24 levels over 4 episodes (the last 2 episodes are especially good). It has some good new sound files, a new disc shooter weapon and a couple of new enemies but the levels are what make it stand out.
Review | Download @ Gamers.org ~16Mb Fan Collection Full Demo ~65Mb includes: Duke Nukem 3D Atomic Edition, Duke It Out In DC, Duke Caribbean, Duke!Zone 2, Duke Xtreme, Duke Penthouse level, Duke Nuclear Winter, Duke The Gate mod (upload by duke_link)

Last Reaction and Water Bases - Partial Conversion
This has 22 huge and very well-designed beautiful levels. Most of the monsters have been altered, and some are new (few ones come from Lameduke, the beta version of Duke Nukem 3D) and nicely animated too. A definite must-play.
Reviews 1 2 | Download @ Gamers.org ~9Mb

Penthouse Paradise ;-) - Famous Level
Gee, I wonder why this became such a famous level? Could it be the adult-themed nudity? Nah. Must be the gameplay.
Download @ Gamers.org ~2Mb Fan Collection Full Demo ~65Mb includes: Duke Nukem 3D Atomic Edition, Duke It Out In DC, Duke Caribbean, Duke!Zone 2, Duke Xtreme, Duke Penthouse level, Duke Nuclear Winter, Duke The Gate mod (upload by duke_link)

Platoon - Total Conversion
In the Vietnam War is the setting for this complete conversion. Indeed the opponents are not especially well animated , however, exciting and diverse missions provide for a lot of extreme fun! The degree of difficulty is very high though! For me ths is the best addon for DukeNukem!
Screenhots Download platoon.zip for Duke Nukem 3d, platomic.zip for Duke Nukem Atomic Edition (4Mb each)

Pray Your Prayers 2000 - Partial Conversion
This is a military conversion that has some excellent new weapons such as a gun which makes an enemy disappear for a few seconds. It has 11 levels so it's not the largest conversion but still worth playing.
Reviews 1 2 | Download @ Gamers.org ~2Mb

Weapon of Mass Destruction - Eduke32 Source Port Gameplay Mod
This is a gameplay mod which has tons of new weapon modes, enemies, and player abilities, such as UT style dodge moves, spinning hook kicks, and a Duke bot companion who fights by your side. In some levels you can even get in your skycar and fly it, doing bombing runs on enemies. In DNWMD, Duke collects glowing coins from slain enemies which are used to purchase various upgrades via a mouse controlled menu. In addition, each of Duke's weapons has its own experience level which increases with use. DNWMD is an action packed shooter with RPG elements. It runs using the included EDuke32 source port, which has improved graphics and other features, and runs smoothly in XP.
Screenshots 1 2 | Download v1.51 @ ModDB ~14MB

Eduke (Enhanced Duke Nukem 3D) - Source Mod
Eduke is one source mod officially approved by 3DRealms and the programmer Matt Saettler who already cooperated in NAM and WW2 G.I. (and, hence, also owns the Duke Nukem source code). Eduke extends the abilities of the Duke3D Script language (.Con files) and offers various other "Enhancements" which offer new possibilities for Mapper and "Con hacks". Till present, unfortunately, there is no bigger addon specially made for Eduke. A Tech-demo level with special effects is provided.
EDuke Hp | Download Eduke32 1.4.0 / Wiki Info

Jonof's Duke 3D Port & High Resolution Pack - Source Port & extras
Jonof's port is one of the most popular allowing native Windows and Linux ports using a Build engine port, OpenGL rendering support, true-colour textures support. It aims to present Duke3D as closely as possible to the original game while adding optional features to expand the possibilities of the game. The high-resolution pack is put together by Pdr "Parkar" Karlsson. this is a massive 80-meg file with hi-res textures and 3d-models by many authors. It comes with the latest version of Jonof's source port. The results are mixed. Some of the textures look very good - some bad or unfit - some just don't mix with each other. 3D-Models are mostly good although many are a bit cartoonish and colorful, and may cause some lag even on modern computers. Don't try to launch it via the normal Jonof Duke3D exe - the installation creates a separate exe for the hi-res pack. It includes all hightile textures, models, maphacks, and hacked game.con files released so far (both 1.3d and atomic) with easy to use installer.
Jonof's Duke3D Port | High Resolution Pack | Screenshots

 

Final Doom

Plutonia 2 - Total Conversion
Does this epic project need an introduction? The only way you could have missed the release of this 32 map sequel to the original Plutonia Experiment is if you've been living under a rock for the better part of this last year. Created by an impressive team of mappers, modders, and musicians, this wad not only lives up to the high expectations set by its predecessor for both aesthetics and gameplay, it exceeds them. True to its predecessor, Plutonia 2 is a wad meant for skilled Doom players who are interested in a good, challenging wad. However, unlike the original Plutonia Experiment, Plutonia 2 is also highly enjoyable to the more casual Doom player, provided that you play on a lower difficulty setting. Also unlike its predecessor, Plutonia 2 contains some large maps that can take quite a while to finish. At the end of it all is one of the most epic and memorable boss fights in any megawad yet. Also, Plutonia 2 also maintains the aesthetic feel of its daddy while, thankfully at the same time, gives the player a more detailed environment, providing the player a rich atmosphere to go along with the rich gameplay experience. With such an epic gameplay experience as this, why wouldn't anyone love this wad?
Screenshots / Infos / Download ~5MB (@ Doom World)

 

Quake

The Nehahra Project - Total Conversion
The Nehahra Project is an extravagant free addon for Quake. It deals with the destruction of ShubNiggurath and transports the player into a new dimension in which one has established a town, with the name Forge City. The Nehahra Project offers new graphics and opponents, improved AI, cutscenes, new weapons, polished level-design and a lot more. This is a definite must-play.
Review/Screenshots - Nehahra Hq 50MB - Tides Of War Addon Episode ~8MB

Beyond Belief - Episode
Complete new episode for Quake, featuring 7 single player maps, one secret level and a new start map. All levels can be played in DM and Coop mode as well as Single Player. Good quality throughout.
Review 1 - Download @ Fileaholic ~7MB

The Demon King - Partial Conversion
Very detailed maps, heavy on the problem solving. Enjoyable part conversion.
Download @ Fileaholic ~7 Mb

Fantasy Quake - Rise of The Phoenix - Total Conversion
Fantasy Quake is a free "total conversion " for Quake. One can use different character classes. The degree of difficulty is rather high, however, it's manageable. At some places one may have the impression that a level cannot be passed, however I have been able to master all levels without a cheat. If it does not seem to be a way to continue, it is most likely a puzzle that it is a matter of solving or one must look around carefully.
Download @ Atomic Gamer 25 Mb

Insomnia - Partial Conversion
A mod with 14 awesome new levels. Beautifully designed with exciting gameplay.
Reviews 1 - Download @ File Planet ~6 Mb

Neil Manke Maps - Episodes
Neil Manke is probably the most prolific mod maker in the world. He is best known for his Half-Life They Hunger TC's but the quality of his work is always superb and his roots are in Quake 1.
Info/Screenshots/Download

Open Quartz - Standalone Open Source Game
Open Quartz is a project to supply GPL'ed artwork in the form of PAK and WAD files to create a fully GPL game based around the GPL'ed Quake source code. This includes models, maps, soundfx and textures. The PAK file also contains the Quake code which controls the behavior and rules of the game. There is also a playable version available that ships with the Dark Places engine by LordHavoc. The final goal of Open Quartz is to become a 100% replacement for the original Quake game data that runs in all the free Quake engines available at present. Open Quartz is only the game data, you can use it with any Quake engine out there such as Dark Places, FuhQuake, Tenebrae, QuakeForge, Telejano, or QMB.
Official Site

Operation Urth Majik - Partial Conversion
5 level mod with great production value thoughout. One of the best ever done.
Review - Screenshots/Download @ Quad Addicted ~10MB

Penumbra Of Domination - Partial Conversion
An outstanding episode with a terrific atmosphere and loads of cool touches. The design quality is excellent and in some cases quite original in the 5 levels.
Review - Download @ Gamers.org ~5Mb

Prydon Gate - Total Conversion
Prydon Gate is a hack and slash action adventure role playing game similar in game play to some giants in the history of games such as Diablo. The game play may seem strikingly similar to that game, but it has quite a few unique twists that should keep the game interesting and repayable numerous times. The Curse of Korweh Map Pack takes place in the far reaches of the east part of Prydon, in a desert known as "Korweh", the home of the god Kor. Thousands of years ago this place was a haven for the Namus people who believed in Kor as their creator, but they began to die out - due to a mysterious curse placed on their temple of worship. The Dark Age is a new map pack by the ELF Team. This campaign takes place in the land of Doraith, which is in the midst of a terrible dark age. Of the four cities of Doraith, El Ray was destroyed years ago, Pen-Y-Caio has been recently conquered by Goblins whilst Rycloth and the capital city Careg-Y-Bardd are surrounded and only the bravest adventurers dare cross between them.
Screenshots - Downloads v1.5 Map Packs

Quake 1 Arena - Total Conversion
Q3 comes to Quake. This has 27 nice levels that import models and weapons from Quake 3 plus some Q1 map favorites and bot support. The latest version has new gamemodes such as insta-gib and excessive.
Download @ FileFront ~19Mb

Rapture - Episode
This is hands down the best looking Quake episode released to date. The levels include amazing castles, fortresses and other medieval type locations. All are rendered beautifully - not a single texture or structure looks out of place.
Screenshots/Download @ Ethereal Hell ~8 Mb

Soul Of Evil - Episodes
Two complete medieval themed single player episodes with new weapons & monsters. There is also a arena option where you can fight against FrikBots or monsters. All in all, a well made mod with bags of gameplay.
Reviews 1 2 - Download @ File Shack ~27Mb

The Sword Of Ares - Total Conversion
This was a commercial shareware total conversion that was later released as freeware. It has new player models with 5 selectable skins, new animations like jumping, flipping, ducking, rolling, and new weapons too.
Full Download ~6Mb (@ Shub Hub)

Twisted Christmas - Episode
Defeat Evil Santa & his demented snowmen and fiendish little elves. Excellent!
Download @ File Front ~4MB

Zerstorer - Episodes
A true classic. This 6 SP map episode, also including a start map, end map, cutscenes and 5 DM maps, has stood the test of time.
Reviews 1 2 Download @ Fileaholic ~11MB

fQuake - QuakeWorld Gaming Package
The main goal of QuakeWorld was to alleviate the problems associated with a slow connection to Quake servers. It also introduced server support for skins (a two-dimensional graphic that is stretched over the three-dimensional wire frame of a character). fQuake is the sequel to eQuake, which was the first All-In-One QuakeWorld package to hit it big within the QuakeWorld scene. fQuake is an open–source project that aims on making a perfect QuakeWorld package containing anything beginners as well as veterans need to play QuakeWorld on a competitive level.
Official Site Retextures Remodels

FuhQuake - Source Mod
This mod enhances the graphics and visual effects of the classic Quake game to update the look. The graphics, textures, lighting and particle effects are all significantly enhanced. Huds and skins are enhanced with 24-bit textures.
Screenshots / Download v0.31 @ Download.com ~100 Mb

Quake Fan Movie Creations
Quake done Quick - Speedrun Movies This is a project to record runs of multi-level sequences from Quake (and Ultimate Doom, Doom 2 and Quake 2) in the fastest times possible. Any short-cut except cheating is approved of, and Nightmare difficulty is assumed. These speed-runs are refilmed to produce movies to download and watch. Tools have also been written to assist in all these activities. Scourge done Slick, a run through Quake Mission Pack #1, is by common consent one of the best Quake movies yet released. Another popular favourite is Quake done Quick with a Vengeance, a 12:23 run all the way through Quake.
Quake Done Quick Home Page
Frags Done Extreme - Deathmatch Movies These are recorded demos of Deathmatches in which awesome skills and kills are shown.
Frags Done Extreme (@ Own-Age)
Machinima - In-Game Films Devil's Covenant - The Director's Cut is considered the best cinematic film with a unique story made using the Quake engine with unique characters, voice acting, and camera moves.
Download @ Machinima.com (page 10,11,12)

Tenebrae - Source Mod
Tenebrae is a modification of the quake source that adds stencil shadows and per pixel lights to quake. Stencil shadows allow for realistic shadow effects on every object in the game world. Per pixel lighting allows you to have fine surface details correctly lit. There are a hefty load of particle effects, reflective water, a flashlight, and flares. These are essentially the same algorithms as used by the new Doom III game. Beware tough, it is a system hog. The system specs needed to run it are a p3/600 with a Ge Force grade video card or better.
Review - Info/Screenshots/Download @ Source Forge ~4Mb

 

Strife

SvStrife - Source Port
SvStrife is a win32 source port based on the Doom-Based engine game, Strife. The oringinal source code to Strife was lost, however, everything was done to make the behavior the same as the oringinal game had. This port is based upon the Prboom source port. Even though SvStrife isn't 100% playable, many features has been successfully implented. Some of the features of SvStrife include SeHacked support, AI improvements, improved video options, menus, movement clipping, and more realism. SvStrife is a single-player game so multiplayer games will most likely not work.
Download

SeHackEd - Hack Editor
This utility lets you alter many portions of the game including items, frames, weapons, sounds, sprites, and text. A full retail strife1.wad is always required for SeHackEd to run. It is recommended to upgrade Strife all the way to v1.31.
Info/Download

 

Tomb Raider

Glidos - 3DFx Glide Emulator
When Tomb Raider originally came out in 1996, it's 3D engine rendered images using software. As 3D graphics cards started to appear, Tomb Raider was updated to be used with the most popular card, 3DFx (now bought up by nVidia), and they used a proprietary technology called Glide which had an enabled runtime developed which allowed the game to be played in higher resolutions and with texture filtering under the DOS system. Glidos, allows old Glide based games to run under Windows along with VDMSound, a Sound Blaster emulator for DOS games. It also supports Tomb Raider Gold:Unfinished Business, Blood, and Descent II.
Screenshots / Info / v1.33 Download v1.32 Full Version No Logo v1.35 (upped by jjim)

Nude Raider - Graphic Mod
Lara Croft was the first game mascot to break the cutesy cartoon mold yet achieve mainstream recognition but her awesome boobage also inspired a glut of "sexy" heroines and pandering advertisements. The Nude Raider patch, an extremely popular game patch made in 1997, features Lara nude. Nude Raider fan sites such as Naturally Lara often feature screen shots of Lara in naked game play action. In response to the patch, more upstanding Tomb Raider fans, including many fans in the Tomb Raider Ring, have taken to posting "Nude Raider free" banners on their sites. These fans affect a more romantic stance towards Lara. The first two Patches (for Tomb Raider and Tomb Raider 2) were programmed of "“nude.raider@fx.fr"” of French origin.
Download/Screenshots

Tomb Raider Xtra - Texture Mod
The original Tomb Raider (and in fact all the TR games up to TR5: Chronicles) used simple textures based on 64x64 pixel squares. With Glidos, there is the ability to read and display new textures, up to four times more detailed than the originals up to 256x256 pixel squares. This means the detail of the original Tomb Raider game can be increased to improve it's overall visual appeal. This retexturing project is in its early stages but looks promising.
Screenshots - Info/Download

1991-93 1994 1995 1996 (1997)

Hexen II

UQE Hexen II - Source Port
This is an engine source port (Unofficial Quake Engine) by Jacques 'Korax' Krige. It fixes many of the things left from the original that the HexenWorld community has requested, and adds many next generation features that gamers everywhere today really require. Originally the creator was working on NewHexen but this is now a completely reworked engine. It also contain parts of Hexen II: Hammer of Thyrion.
Download v1.13 7MB

 

Blood

Blood Mapedit - Level Editor
The level-editor with which Blood was constructed.
Download / Control-Z's Mapedit Tutorials

Blood CD Tracks
The CD tracks from Blood as Mp3 files.
Download ~46MB

Bloody Pulp Fiction - Total Conversion
Deadland awaits Caleb as he is thrust into action once again by the determined Cabal who are stopping at nothing to kill, enslave, pillage, ravage, and bring forth unholy darkness in it's wake. Caleb, now in the present, wants nothing more than to avoid the Cabal and forget any ties to Tchernobog, but the world is Decaying as the Remnants of the Cabal spread through out the globe like a Cancer. Experience up to 18 levels of fast paced, adrenaline-soaked, bloodthirsty action in some of the most detailed and frantic maps ever made for Blood. Experience snowy cities, malls, dockside ports, graveyards, haunting forests, gigantic sea-faring ships, old forgotten towns along Route66, torture chambers, a dilapidated carnival site, Cabal strongholds, and much more.
Screenshots / Download

Glidos - 3DFx Glide Emulator
3DFx video cards (now bought up by nVidia), used a proprietary technology called Glide which had an enabled runtime developed which allowed certain games to be played in higher resolutions and with texture filtering under the DOS system. Glidos, allows old Glide based games to run under Windows along with VDMSound, a Sound Blaster emulator for DOS games. It also supports Tomb Raider, Tomb Raider Gold:Unfinished Business & Descent 2.
Info / v1.38 Download v1.32 Full Version No Logo v1.35 (upped by jjim)

Legends Of Iconoclast - Partial Conversion
These are the largest new episodes created for Blood. Part 1 has 28 awesome levels set in Caleb's home city, a medieval realm, and Tchernobog's castle, 24 gothic midi tracks, and almost 4 dozen new sounds. Part 2 has 18 new levels where you defend yourself against his undead armies through the wastelands of Iconoclast, the Chaos Sanctuary, and the evil sorcerer's castle with 18 new music tracks and 12 new sounds. Only a 2-level demo exists of Part 3.
Info/Downloads

Rage Against The Machine - Partial Conversion
RATM or simply ‘Rage’, is a combined effort by select members of the Blood community to create a Blood campaign worthy of remembrance and worthy of honouring, and hopefully complementing, the Blood title and its legacy. Rage’s objective is to expand on the Blood universe, adding a little innovation where necessary, while not compromising the spirit of the original title’s unbeatable action, breathtaking atmosphere and overwhelming fun factor. So far, Episode 1 of the campaign has been released, but the rest are coming up. All the Single Player maps included in this campaign are fully optimised and compatible with Bloodbath, Co-operative and Team Mode Play. Difficulty levels are also implemented. There's also the added bonus of including custom music that fully captures the essence of the original’s soundtrack. The story is told through a series of gripping, live-action cinematics played at the opening.
Info/Downloads

Duke Caribbean: Life's a Beach

VacaHRP - High Resolution Pack
This improves the graphics in this addon pack and was compiled by Hendricks226.
Download v1.5

 

Duke It Out In DC

Duke D.C. HRP - High Resolution Pack
This improves the graphics in this addon pack and was compiled by NightFright.
Download v1.5

 

Duke Nukem Nuclear Winter

Nuclear Winter HRP - High Resolution Pack
This improves the graphics in this addon pack and was compiled by Hendricks226.
Download v3.5

 

Jedi Knight: Dark Forces 2

Jedi Knight Enhanced - Hi-Res Models & Textures
This has most of the graphics in Jedi Knight, recreated from scratch, to bring it up to more current visual standards. The mod finally weighs in at 181 models total, and more textures than I care to talk about. It replaces all the players, enemies, dark jedi, npc's, items, weapons, and projectiles. All the sprites have been updated, as well as the sabers, and sky textures. The multiplayer character selection has been extended to include previously unplayable characters, such as maw and 8t88.
Download / Screenshots

 

Redneck Rampage

Erampage - Total Conversion
eRampage is a free open source port derived from Eduke32 and intended to run games from the Redneck series. Those include Redneck Rampage, Suckin' Grits on Route 66, Redneck Rampage Rides Again.
Screenshots Official Site/Download

The Hickston Swamp - Singleplayer Levels Pack
Since a lot of people have problems running user levels, Jon Hunt took 14 of the best user levels created by Tom Bolton and himself, and put them into one add on level pak. It was meant to be a remake of sorts of Suckin' Grits on Route 66, because they thought it "really did suck".
Screenshots/Download 2.3MB (@ Official Site)

 

Shadow Warrior

JonoF's Shadow Warrior Port - Source Port
Just one week after the source code was made free to the public, this port came out for Windows using JonoF's previous Build engine port used for Duke Nukem 3D. It has openGL rendering and true-colour textures support. The aim of this port is to present Shadow Warrior as closely as possible to the original game while adding optional features to expand the possibilities of the game. You only need the .GRP file from either Shadow Warrior Shareware or Registered versions to use it.
Official Site/Download High Resolution Pack (HRP) for JFSW (@ Proasm)

Rampage Warrior: The Nightmare - Total Conversion
This is a 6 level Total Conversion where all weapons and weapon strengths have been changed as well as all enemy, and enemy behaviour. Over 140 sounds have also been changed.
Official Site/Download

Twin Dragon - Total Conversion
This was to be another commercial add-on but all were cancelled due to poor game sales of Shadow Warrior. It's a 13 SP level & 3 deathmatch level Total Conversion with new art, sounds, and end boss. It was created by Wylde Productions and Level Infinity, and features music by Castles Music Productions. Lo Wang finds he has a brother, Hung Lo, that was adopted and raised by the evil overlord Pu Tang.
Screenshots Unreleased Twin Dragon Addon ~6MB (@ Proasm)

Wanton Destruction - Total Conversion
This was supposed to be a commercial add-on developed by a company called Sunstorm but never made it onto retail shelves and was thought lost in the bowels of time, but has now re-surfaced in September/2005 and is made freely available. The download includes 12 new missions and 4 multiplayer maps, and requires the original v1.2 registered version of the game.
Screenshots Freeware Download ~22Mb / Optimised Download 3.4MB (@ Proasm)

Zilla's Vengeance - Total Conversion
A small Total Conversion...
Zilla's Vengeance ~10kB (@ FilePlanet)

 

Quake 2

Deadlode 2 - Multiplayer Total Conversion
If looking for a substitute for Team Fortress, at this time there weren't any (Weapons Factory came later on). This now freeware addon for Quake 2 is only partly recommended, because one needs a lot of "foreknowledge", patience, and a lot of time to play it well...
Screenshots | Download @ Gamers.org 53Mb

1492: Anno Domini - Total Conversion
This has 8 levels that are massive in scale and really beautiful graphics with textures taken from Rune, Unreal and Quake 3. The gameplay is quite difficult too as you meet many hundreds of enemies.
Reviews 1 - Screenshots/Download ~29Mb

1964: Echoes Of The Past - Partial Conversion
Impressive 8 levels with dark spooky atmosphere, awesome architecture and hard gameplay.
Reviews 1 Download ~7Mb (@ PlanetPhillip)

Belly Of The Beast - Partial Conversion
13 maps including demos, scene setting maps and a whole lot of custom changes like modern looking multi-colored scifi textures. Obviously a large variety of maps, mostly very good, with some novel and interesting designs. Good gameplay too, again with some clever touches, and not too hard.
Reviews 1 2 4 - Info / Download ~20Mb

Castles Of Stroggos 3: The Final Objective - Partial Conversion
6 levels taking place on the Strogg mothership in space that were a year in the making with awesome design, lighting, architecture and brilliant layout. There are awesome new special effects too.
Reviews 1 2 - Review/Download ~8Mb

Dark Undergrowth - Partial Conversion
A 3 map tour-de-force of some completely original styles, using waste combined with a distinctive organic metal style. Very interesting and engrossing, with excellent architecture and designs, as well as solid fun gameplay. A uniquely styled Q2 experience.
Reviews 1 - Review/Download ~4Mb

Deaf, Dumb And Blind - Partial Conversion
In these 5 levels, there are some excellent designed and original outdoor sections to start and finish. In between it's a more normal Q2 style, with other good designs - and a great skybox - though some plainer sections. Gameplay is solid throughout, and well balanced in this version, though it could be more inspired, however good exploration and secrets keep it interesting throughout.
Reviews 1 2 - Download ~6Mb

Escape - Total Conversion
From the same makers as Half-Life's The Xeno Project, Escape (aka Loki's Missions: Escape) is a single player adventure for Quake2 containing 6 customs maps, new sounds, textures and cinematics. The lmctf plasma rifle makes an appearance. It fires in 2 modes; spread and bounce. There is also a new type of soldier called the plasma soldier. He comes in 2 varieties; 1 firing a bounce plasma rifle and 1 firing a spread plasma rifle. His model is the same as the other Q2 soldiers but you can identify him by his blue and black skin.
Reviews 1 2 - Review/Download ~16Mb

Gloom - Multiplayer Total Conversion
Gloom is an atmospheric team play modification for Quake II that pits humans against a team of alien spiders. The object of the game is to obliterate the opposing team by killing their troops and destroying their spawn points. Each team has six classes which can be bought with frags earned, as well as two base classes. The depth of Gloom lies in the radical differences between its teams as well as the versatility of the builder classes that have the power to make every game truly unique. The fun of Gloom lies in using teamwork and class advancement to dominate each game.
Official Site/Screenshots Download v1.3 27MB Download Standalone v1.3 63MB / Review

Last Day On Stroggos - Partial Conversion
This 9 level pack has some original gameplay puzzles which make you think. The first level is the worst of the bunch but they get much better. Lasers are used a bit much in the pack but the incredible architecture and non-linear gameplay make it a definite must play.
Reviews 1 - Download ~9Mb

Neil Manke Maps - Series Of Maps
Neil Manke, mod maker extraordinaire, created some superb Quake 2 maps including the innovative Coconut Monkey series of 3, the Slaughtership sci-fi map on a huge ship, and the realistic Soldier of Fortune series of 3 maps as well with convincing outdoor scenery, as well as unusual touches such as a helicopter and a lake-bound submarine, and nice scripted scenes.
Coconut Monkey: Info/Screens 1 2 3 Downloads Reviews 1 2 3 - Slaughtership: Review Info/Screens Download - SOF: Reviews 1 2 Info/Screens 1 2 Downloads 1 2 3

Pax Imperia - Total Conversion
This uses a new game engine (Knightmare's), which must be downloaded also, to create really beautiful levels. All of the 8 levels bombard you with massive amounts of enemies (over 2500 in total). It has drop-dead gorgeous graphics and new monsters, models, and weapon sounds. There are a few very nasty surprises for you that you have never seen before too.
Official site/Screenshots/Download ~36Mb

Powersphere Quest V2 - Level Pack
5 beautiful non-linear levels with heavypower enemies like Tanks, and Flying Bosses, and Supertanks, and Gladiators. A nice and interesting-looking challenge.
Reviews 1 - Download ~5Mb

Progetto Genoma 1 & 2 - Partial & Total Conversion
From expert map-maker Mark Shan, comes these excellent packs. The first one boasts some tough fights with 1,100 enemies spread over a dozen levels with some nice architecture and lighting. The 13 levels in the sequel called Return To Hell are a total conversion. With the enhancements to Gunners (3 new types), Gladiators (shield and Phalanx cannon), Iron Maidens (heatseeking missiles) and SuperTanks (shields), brutal does not even begin to describe the combat.
PG1 Reviews 1 2 - Screenshots/Download: PG1 ~21Mb / PG2 ~31Mb

Quake 2 Evolved - Source Port
This is a source port of Quake 2 to the Quake 3 engine. The engine was redone with more visual effects, more explosions and more blood. It has a shader system much like that of Q3, optimized model skins (huge difference), a completely reworked menu system and much, much more.
Screenshots Home Page/Download

Quake2Max - Source Mod
This OpenGL source mod of Quake 2 adds many improved features and graphics. It has 32-bit color skin/texture support, texture compression, a particle engine, enhanced menus, and improved model lighting and dynamic shadow systems among other features.
Download 3MB Retexture Package 200MB (@ FPS Ports)

SOG - Total Conversion
SOG was founded a day after the famous Generations mod was canceled due to copywrite infringement. Basically, it allows you to play as classic id Software characters with a Wolf3D based character, followed by the DOOM based character, then the Quake based character, and then finally Sgt. Payne is the Quake 2 grunt. Each of the characters uses versions of their original weapons.
Review - Download v1.3 Final ~72Mb

Dawn Of Darkness - Total Conversion
This is a nice Fantasy conversion with RPG elements. It was supposed to be a commercial addon but was cancelled. The makers, Ward Six, however released the finished levels as freeware. New weapons include daggers, swords and arrows (flaming and exploding too). There are also items like healing potions, a torch to light up dark areas, and a shovel to uncover hidden items. The new enemies are different types of soldiers, an occasional demonic creature, nonviolent NPCs that you can interact with and a really tough end boss. There are 4 really large and good-looking levels with nice details and atmosphere.
Screenshots/Download & Patch 1.1 / Download @ Nestlesux

E1U1 Textures
A pack a new textures for Quake 2.
Screenshots: 1 2 3 4 / Download ~285MB (upped and created by otiscrusher)