):gzDoom
It has all the features of zDoom, openGL graphics and many own features: dynamic light, 3d-floors - AND it is being worked on by a real genius which means that there are new versions frequently adding good stuff.
The first few versions were a bit problematic, but now with the 12th version (since the begining of september that is!), I thought that I should share it with you.
Oh, and be sure to also download the file LIGHTS.WAD, create a folder named "skins" in your gzDoom directory and copy lights.wad into it. (Skins is kind of an "autoload" folder) If you don't do it, you won't have the beauty of dynamic light.
Also take a look at the forums there. You'll see many cool screenshots showing of the power of this new port. And more importantly: some levels using its advanced features. (Most of which are kind of experimental but a nice peek into what we can expect from our beloved Doom-scene in the near future.)
