Tessa's Ark Achievements Here is the full list of all 9 Tessa's Ark achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.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 First StepsYour Journey Has Begun Dr. BensonFirst Meeting with Dr. Benson Ghost of a ChanceLidia joins the party ArbiterArbiter joins the party Tin ManSector joins the party PuzzlerFirst Puzzle Complete Chromatic MasterFinished Second Tutorial Puzzle Quad MadsterFinished Quadrant Puzzle Edge of the WorldFinished Chapter One