The entire game uses only 97,280 bytes of disk space. Much of this small size is attributable to the game's use of procedurally generated content. In contrast, most popular first-person shooters fill one or more CDs or DVDs. [1] According to the developers, .kkrieger itself would take up around 200–300MB of space if it had been stored the conventional way.

Textures are stored via their creation history instead of a per-pixel basis, thus only requiring the history data (possibly as low as ~300 bytes per texture at any resolution) and the generator code to be compiled into the executable, producing a relatively small file size.