A strange little side quest
Put Evony next to the history of platform games and a few unexpected connections appear. Sonic the Hedgehog launched in 1991 and turned speed itself into a defining platform-game mechanic. The surprising part is how quickly the next milestone followed. Doom changed game design and distribution in 1993 by separating its engine from content and spreading widely through shareware. Not bad for a few facts hiding behind a Play button.