A strange little side quest
The fun part of looking behind Madness Online is seeing how many older ideas are still alive in modern play. Games resembling checkers were being played thousands of years ago; evidence of related games reaches back to around 1600 BC. That is only half the story. Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. It is a good reminder that simple game mechanics can carry a surprising amount of history.