Door4:Ultimatum Achievements Here is the full list of all 9 Door4:Ultimatum 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 Tutorial DoorTutorial zone has been completed Main GateYou have opened the Main Gate Chess DoorYou have opened the Chess Door Symbols DoorYou have opened the Symbols Door Castle DoorYou have opened the Castle Door First SecretYou found the first mystery puzzle piece All SecretsYou found all mysterious pieces of the puzzle All Puzzle PiecesYou found all pieces of the puzzle Happy EndYou have completed the game.