This image is from .kkrieger, a game that with Unreal graphics less than 97 kilobytes in size ... for the entire game. So what is its secret? A technique known as procedural synthesis (or procedural generation) that, in a nutshell, uses clever and complex algorithms to make graphics, as opposed to pre-set artwork made by a design team. Thus, the procedural graphics are run by the processor and improve (or degrade) with the CPU speed. An example of a game based off this idea is Will Wright's Spore.