The entire game uses only 97,280 bytes of disk space. In contrast, most contemporary first-person shooters fill one or more CDs or DVDs. According to the developers, .kkrieger itself would take up around 200–300 MB of space if it had been stored the conventional way [0]
I just tested it with Wine. The process seemed to consume about 320MiB of RAM.
From the wikipedia article:
The entire game uses only 97,280 bytes of disk space. In contrast, most contemporary first-person shooters fill one or more CDs or DVDs. According to the developers, .kkrieger itself would take up around 200–300 MB of space if it had been stored the conventional way [0]
[0] https://en.wikipedia.org/wiki/.kkrieger#Procedural_content
So after it generates all the assets in RAM, the game takes up 200-300 MB?
Yes.
Right.