“Doom” (stylized as DOOM) is an American media franchise crafted by a team including John Carmack, John Romero, Adrian Carmack, Kevin Cloud, and Tom Hall. The series typically revolves around the endeavors of an unnamed space marine, commonly known as Doomguy or Doom Slayer, working under the banner of the Union Aerospace Corporation (UAC). His mission is to combat swarms of demons and the undead to prevent an apocalyptic invasion and safeguard Earth.