Outlast Achievements Full list of all 17 Outlast achievements worth 1,500 gamerscore. It takes around 15-20 hours to unlock all of the achievements in the base game on Xbox One.The base game contains 11 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 6 achievements worth 500 Gamerscore.Filter Achievement View View Image viewList view Sort by TrueAchievement desc TrueAchievement asc Achievement name desc Achievement name asc GamerScore desc GamerScore asc TA Ratio desc TA Ratio asc Gamers desc Gamers asc Xbox.com order Date won desc Date won asc DLC Packs Group DLC packs together in list DLC Filter AllOwnedNone Flag Filter All None 17 Offline Mode 17 Single Player 10 Main Storyline 1 Story Completed 3 Difficulty Specific 4 Stackable 4 Collectable 7 Missable 1 Buggy + 2 Buggy - Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Base Base Game (Excludes DLC) 4,026 1,000 11 4.1167,1083,201 (2%)15-20h ILLUMINATEDRestore power to the Administrative Block 2 guidesFLUSHEDDrain the Sewers 1 guideSOAKEDActivate the sprinklers in the Male Ward 1 guideEMANCIPATEDCollect the key in the Female Ward 1 guideEDUCATEDCollect 15 documents and complete 15 recordings 1 guidePUNISHEDFinish the game 1 guidePULITZERCollect all documents and complete all recordings 3 guidesLUNATICFinish the game in Insane mode 3 guidesELEVATOR OPERATORDrop the corpse in the elevator shaft 3 guidesCLAUSTROPHOBEFinish the game without hiding under a bed or in a locker 5 guidesENERGISERFinish the game in Insane Mode without reloading camera batteries 4 guides Add-on Whistleblower 1,496 500 6 4.3729,0933,193 (11%)3-4h GAS LEAKER(DLC) Turn off the gas 1 guideSHOCKER(DLC) Turn off the electricity 1 guideWHISTLEBLOWER(DLC) Finish the Whistleblower DLC 1 guideBOWELWHISTLER(DLC) Finish the DLC in Insane mode 1 guideARCHIVIST(DLC) Collect all documents 1 guideLEGACY(DLC) Complete all recordings 1 guide