Hallway 41 Achievements Here is the full list of all 5 Hallway 41 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 Reliable Test Subject Aha! Spotted You!Successfully reported your first abnormality A Good EyeFound all abnormalities Sweet Sweet DoughnutCompleted the trials Scary EncounterSaw the ghost girl