Master Key Achievements Here is the full list of all 15 Master Key achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonMaster NonogramYou solved all of the nonograms 27 March 2025 - Add a guideYOU DIEDMany times. 26 March 2025 - Add a guideMineralogistYou found all of the cristals. 25 March 2025 - Add a guideAudiophileYou found all the discs. 25 March 2025 - Add a guideHealthyYou reached the maximum of HP. 25 March 2025 - Add a guideMaster KeyCongratulations! 25 March 2025 - Add a guideFullmetal AntagonistSplash. 25 March 2025 - Add a guideBig SwordA big sword made by little guys. 23 March 2025 - Add a guidePotionMakes you all dizzy. 23 March 2025 - Add a guideCityYou reached the city. 23 March 2025 - Add a guideColosseumYou proved your worth in a battle to the death. 23 March 2025 - Add a guideHydraAnd make it double. 21 March 2025 - Add a guideShipCrash. 21 March 2025 - Add a guideGhostBoo. 18 March 2025 - Add a guideMoleWhack. 18 March 2025 - Add a guide