Unknown Entity Achievements Full list of all 25 Unknown Entity achievements.The base game contains 0 achievements, and there is 1 DLC pack containing 25 achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc DLC Packs Group DLC packs together in list DLC Filter AllOwnedNone What are achievement flags? Click to find outApply Add-on Unknown Pack 250 250 25 0.0011 (100%) Collector IObtain an artifact with all its variants Collector IIObtain two artifacts with all their variants Collector IIIObtain three artifacts with all their variants Collector IVObtain four artifacts with all their variants Collector VObtain five artifacts with all their variants BossKiller IKill a boss on all difficulties BossKiller IIKill two bosses on all difficulties BossKiller IIIKill three bosses on all difficulties BossKiller IVKill four bosses on all difficulties BossKiller VKill five bosses on all difficulties Shapeshifter IGet one different skin Shapeshifter IIGet two different skins Shapeshifter IIIGet three different skins Shapeshifter IVGet four different skins Shapeshifter VGet five different skins Knight IKill the first series of bosses in a row Knight IIKill the second set of bosses in a row Knight IIIKill the third set of bosses in a row Knight IVKill the fourth set of bosses in a row Knight VKill the fifth set of bosses in a row God IComplete all achievements God IIComplete all achievements God IIIComplete all achievements God IVComplete all achievements God VComplete all achievements