Doom
1993 · game
id Software, led by John Carmack and John Romero, created Doom in 1993 as a spiritual successor to Wolfenstein 3D. Carmack's revolutionary engine rendered 3D environments in real time on consumer hardware, while Romero designed visceral level layouts and combat encounters. The team distributed it as shareware, allowing players to try the first episode free, which ignited grassroots adoption across college networks and offices worldwide.
Doom transformed gaming by establishing the first-person perspective as the dominant viewpoint for action games and proving that PC could compete with arcade cabinets. Its fast-paced combat, where players circle-strafed around demons while managing limited ammunition, became the template for action game design. The modding tools id Software released spawned thousands of custom WADs, creating a creative community that extended the game's lifespan indefinitely and proved players wanted to build their own content.
Today, Doom remains the genetic blueprint for shooters from Halo to Call of Duty, while its 1993 code continues running on refrigerators, smartwatches, and pregnancy tests through its legendary portability. Modern roguelike games, roguelikes, and procedural generation owe debts to Doom's algorithmic level design. The franchise itself survives through reboots and remakes, but Doom's true legacy is the first-person shooter genre itself, which generates billions annually.