Unknown Achievements Here is the full list of all 5 Unknown 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 What are achievement flags? Click to find outApply The BeginningYou survived in the 1st level. Light and PowerYou survived in the 2nd level. Rhythm and EchoYou survived in the 3rd level. Shell Meat LoverYou survived in the 4th level. Storyteller