DOOM 64 Achievements Here is the full list of all 10 DOOM 64 achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.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 Flag Filter All None 10 Offline Mode 10 Single Player 5 Main Storyline 1 Story Completed 1 Difficulty Specific 5 Collectable 5 Missable 1 Buggy - Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Mother May I?Defeat the Mother of All Demons on The Absolution 2 guidesWalk the PathFinish the Lost Levels mission 5 guidesSecret SleuthDiscover a secret area 5 guidesMy Cause is Just, My Will is StrongFind the BFG9000 5 guidesUnholy FirepowerFind the Unmaker 5 guidesPersistence is the KeyAcquire all 3 Demon Key Artifacts in the main campaign 3 guidesRip and Tear!Kill a Cyberdemon 3 guidesThat was FunFinish a 'Fun' Level 4 guidesRVNH3CT1CD3M0???Locate the secret level 'Hectic' 4 guidesEscape ArtistFinish 'No Escape' on Watch Me Die! skill level 4 guides