A strange little side quest
Even a quick game like Christmas Survival FPS sits on top of decades — and sometimes centuries — of ideas. Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. The timeline takes another interesting turn: Atari's Gran Trak 10 from 1974 is recognized as the first arcade racing video game. That history is one reason familiar mechanics can still feel new when they are recombined well.