“DarkPlaces is a Quake modification I have built over the course of 6 years on and off experimenting, it got somewhat of an overhaul when the Quake engine source code was released, and I began developing a custom OpenGL-only engine for it and other mods, which supports Windows WGL and Linux GLX, and has greatly improved graphics and image quality.”

Just a quick look at the ‘ultra’ hi-res how-to for the O.G. Quake. Look for it this weekend.

Website: icculus.org/twilight/darkplaces/