Invisible Achievements Here is the full list of all 8 Invisible 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 Chapter 1Complete Chapter 1 Chapter 2Complete Chapter 2 Chapter 3Complete Chapter 3 Chapter 4Complete Chapter 4 Chapter 5Complete Chapter 5 ChaserComplete the Chase Challenge Puzzle MasterComplete the Puzzle Challenge Time MasterComplete the Speed Challenge