The Pacifist's Great and Final Nightmare Achievements Here is the full list of all 11 The Pacifist's Great and Final Nightmare 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 Level OneComplete the first level. Level TwoComplete the second level. Level ThreeComplete the third level. Level FourComplete the fourth level. Level FiveComplete the fifth level. Level SixComplete the sixth level. Level SevenComplete the seventh level. Level EightComplete the eigth level. Level NineComplete the ninth level. Level TenComplete the tenth level. Win The GameComplete the eleventh level.