Derange Achievements Here is the full list of all 14 Derange 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 Enter the World of Survival HorrorClear the Prologue chapter of the game. Residence EvilClear the Mansion chapter of the game. What Lies BeneathClear the Mine chapter of the game. Fear the UnknownClear the Lab chapter of the game. Apex SurvivorAchieve an "A" rank upon beating the game. Worst NightmareBeat the game on Hard difficulty. Got Your BackBeat the game with both partner characters alive. Final GirlBeat the game as Jessica. Max Level TechnicianBeat the game as Nathan. Living on a PrayerBeat the game without saving. Anti VaxxerBeat the game without using healing items. Boss on a StickKill the first boss using the spike trap. Boss BarbecueKill the second boss with explosives. Boss BroadcastKill the final boss with the radio signal.