Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression. Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression. Story: You've come here for a reason. The Union Aerospace Corporation's massive research facility on Mars is overwhelmed by fierce and powerful demons, and only one person stands between their world and ours. As the lone DOOM Marine, you've been activated to do one thing – kill them all.