Comment by tripzilch

That's still only roughly the size of a single mp3 file or one digital camera picture! :)

And of course, the biggest trick in .kkrieger is that everything is procedural. A choice made because of the goal they set out with. There's assets in Doom that just couldn't have been done with tiny procedural texture descriptions and still represent quite the same thing. For .kkrieger such assets were simply not an option and the game was designed around it.

Also, I always liken the graphics in .kkrieger to Halflife 1, not Doom, which is quite a bit different. Objects in Doom were all billboarded sprites, afaicr.