The game Brainshell is set in an alternate reality in 1963 where human intellect has replaced computers amidst an out-of-control nuclear arms race. Governments use propaganda, brainwashing, and body modifications to create a sentient nuclear missile. Developed by a Finnish team, the game features gameplay that involves manipulating archaic levers and navigating a grotesque maze of flesh. Players experience a tense atmosphere with low survival odds, and the protagonist has a psychological aversion to clean water. The soundtrack is described as capturing a voice of madness, featuring warped brass instruments. Players face graphic scenarios, including the need to sever their own limbs with a rusty hacksaw, highlighting the game's dark themes.