890B Achievements Here is the full list of all 11 890B achievements worth 1,000 gamerscore. It takes around 0.5-1 hour 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 11 Offline Mode 11 Single Player 11 Main Storyline 1 Story Completed Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Section 01Talk to Luna 3 guidesSection 02Explore the atrium 3 guidesSection 03Find the calculus lab 3 guidesSection 04Bring Luna her laptop 3 guidesSection 05Restore the power 3 guidesSection 06Open the door to the observatory 3 guidesSection 07Find the electronic board in the atrium 3 guidesSection 08Hack the board 3 guidesSection 09Reach the lens in Luna's office 3 guidesSection 10Compile the script in the observatory 3 guidesThe endEnd the game 3 guides