Nonogram Halloween Achievements Here is the full list of all 7 Nonogram Halloween 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 First StageSolved the first stage! 10 StagesSolved 10 Stages! 20 StagesSolved 20 Stages! 30 StagesSolved 30 Stages! 40 StagesSolved 40 Stages! 50 StagesSolved 50 Stages! Nonogram MasterSolved all 58 Stages!