Afterfall InSanity - Dirty Arena Edition Achievements Here is the full list of all 15 Afterfall InSanity - Dirty Arena Edition 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 Underground Arena: First Encounter FinishedFinish first encounter Underground Arena: Second Encounter FinishedFinish second encounter Underground Arena: Third Encounter FinishedFinish third encounter Underground Arena: Fourth Encounter FinishedFinish fourth encounter Underground Arena: Fifth Encounter FinishedFinish fifth encounter Underground Arena: Sixth Encounter FinishedFinish sixth encounter Underground Arena: First Boss DefeatedDefeat first boss Underground Arena: Second Boss DefeatedDefeat Second Boss Underground Arena: Third Boss DefeatedDefeat Third Boss Shelter Entryway: First Encounter FinishedFinish first encounter Shelter Entryway: Second Encounter FinishedFinish second encounter Shelter Entryway: Third Encounter FinishedFinish third encounter Shelter Entryway: Fourth Encounter FinishedFinish fourth encounter Shelter Entryway: Fifth Encounter FinishedFinish fifth encounter Shelter Entryway: Sixth Encounter FinishedFinish sixth encounter