A strange little side quest
Zoom out from Circle Down for a moment and the timeline gets surprisingly deep. Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. That is only half the story. Midway's Gun Fight from 1975 was the first arcade video game to use a microprocessor. The details change, but the appeal of learning a system and trying again is remarkably persistent.
