DOOM Eternal features an official, built-in multiplayer PvP experience known as BATTLEMODE, designed by id Software as a fast-paced asymmetrical 2v1 competitive arena mode. In this mode, one fully armed player takes control of the DOOM Slayer, equipped with a complete arsenal of guns, attachments, and dashing mobility, while facing off against two other players who take control of specialized playable demons—such as the Marauder, Mancubus, Pain Elemental, Revenant, Archvile, or Dread Knight. The demon players must coordinate strategy, summon AI minion hazards, and block resource drops to defeat the Slayer across best-of-five round matches. Although an open-world single-player campaign "Invasion Mode" was originally teased, it was eventually scrapped in favor of this dedicated mode and the single-player Horde Mode.