Re: Since we're comparing websites with antique game code size...
But then again, DOOM wasn't really a 3D engine, just a 2D engine that happened to tack on Z coordinates to everything. For example, I don't think it was until Rise of the Triad that things could actually exist OVER other things. And then there were the graphics limitations. How big was a DOOM texture again? 64x64? And the enemies were sprites, not models (no real improvement on that until Quake IIRC). So while DOOM and other games using the engine like Heretic and Hexen were great for their time, we also gotta realize that technology marches on.