While this energy solves Earth's power issues, it requires constant expeditions into Hell to retrieve demonic artifacts and specimens. During one such expedition, Hayden discovers a mysterious stone sarcophagus containing an ancient warrior: the . The Demonic Invasion

With the base overrun, Hayden releases the Doom Slayer from his sarcophagus as a "contingency plan" to cleanse the facility.

For a complete visual walkthrough of the DOOM 2016 campaign, you can watch this full-game playthrough: DOOM 2016 - Full Game Walkthrough YouTube• Aug 13, 2016

: The Slayer confronts Olivia Pierce at the source of the portal. She is sacrificed by the demons and transformed into the Spider Mastermind , whom the Slayer destroys. The Ending and Betrayal