Decay: The Mare Achievements Here is the full list of all 42 Decay: The Mare achievements. It takes around 3-4 hours 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 Flag Filter All None 42 Offline Mode 42 Single Player 29 Main Storyline 11 Collectable 2 Missable Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Get OutGet out of your own room. Got ItemPick up an item. Red ButterflyMeet the red butterfly. The Blinking EyesComplete the blinking eyes puzzle. The FanComplete the fan puzzle. Broken TableGet the table near all the photos to break. The SledgehammerGet the sledgehammer. The BagFinish the conversation with the bag in episode 1. The MazeFind your way through the maze. Time is an IllusionComplete the clock puzzle. Master of DrawingsComplete the drawings puzzle. Coin Collector 1Collect all coins in the first episode. Decay Master 1Complete the first episode. Break the WallBreak the brick wall. The ChairVisit the hidden room with the empty chair a second time. Code FinderUnlock the first door in episode 2. Button MasterComplete the buttons puzzle. NumbersComplete the second code lock puzzle in episode 2. The Metal BoxUnlock the metal box in episode 2. Hidden TextFind all the hidden text in episode 2. Meet JackTalk to Jack. Nail CollectorFind all the nails. Coin Collector 2Collect all coins in the second episode. Plate MasterComplete the puzzle with the plates in episode 2. Decay Master 2Complete the second episode. First ShotTake your first shot with the camera. Hurt TeddyPut the four nails in Teddy. Jack's BodyFind Jack's body. CirclesUnlock the box with the circles in episode 3. Ball CollectorCollect all of the balls in episode 3. ColoursComplete the puzzle with the coloured balls. Zombie of the DeadWatch the scariest movie ever! SymbolsComplete the puzzle with the symbols in episode 3. The KnifeGet the knife in episode 3. ToryFind Tory in episode 3. Coin Collector 3Collect all coins in the third episode. Decay Master 3Complete the third episode. Good EndingGet the good ending in episode 3. Bad EndingGet the bad ending in episode 3. Time TravellerUse the pocket watch to travel in time. Rafael's ConfessionReveal the history of Rafael. DetectiveUse the magnifier on the painting in episode 3.