Stack Machines Achievements Here is the full list of all 7 Stack Machines 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 BeginnerSolve levels 1 through 15 IntermediateSolve levels 16 through 30 AdvancedSolve all levels after level 30 All stacked upSolve all levels Optimal solutionSolve levels 2 and 3 in 42 cycles ReverseSolve level 6 DecompositionSolve level 38(Decomposition)