"Doom," stylized as DOOM, is a pioneering first-person shooter franchise created by John Carmack, John Romero, Adrian Carmack, Kevin Cloud, and Tom Hall. The original game, released in 1993 by id Software, is considered one of the most influential in the genre, popularizing 3D graphics, networked multiplayer gameplay, and player-created modifications. Players assume the role of an unnamed space marine, often called Doomguy or the Doom Slayer, who battles hordes of demons and the undead to prevent an apocalyptic invasion of Earth. Initially distributed as shareware, the full game quickly sold over one million copies.
The success of "Doom" led to numerous sequels, spin-offs, and adaptations across various media, solidifying its impact on the gaming industry. "Doom" was revolutionary for its immersive 3D layout, level design, and engaging gameplay, inspiring many subsequent first-person shooter games. The series is known for its fast-paced, violent combat, featuring a variety of weapons and aggressive enemies. The latest installment in the main series is "Doom: The Dark Ages," a prequel set many years before "Doom" (2016), which follows the Doom Slayer in a medieval war against Hell and was released on May 15, 2025.