Nightmare Frontier Achievements Here is the full list of all 47 Nightmare Frontier 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 Into the Nightmare LockedFast and Deadly LockedGraveyard Shift LockedDefeat the Doc LockedDefeat the Abomination LockedSafe Hands LockedFully Operational LockedDepartment Head LockedMass Grave LockedStatus Overload LockedSkill Surge LockedUntouchable LockedOn The Edge LockedBravado Strike LockedFirst Blood LockedUpgrade Complete LockedSafe Return LockedHQ Improvements LockedOverkill LockedTriple Threat LockedOne Man Army LockedCombo Starter LockedSurvive the Nightmare LockedNightmare Veteran LockedNightmare Conqueror LockedNightmare Master LockedNightmare Speedrun LockedUntouchable: Nightmare LockedPacifist Run LockedTavern Regular LockedDouble Kill LockedDevastator LockedExterminator LockedLast Man Standing LockedBlitz LockedWar of Attrition LockedVeteran Slayer LockedRegular Customer LockedOld Hand LockedChinatown ExplorerReach depth 100 in the Chinatown district. LockedHigh SocietyReach depth 100 in the Wealthy district. LockedDocks VeteranReach depth 100 in the Docks district. LockedSlums SpelunkerReach depth 100 in the Slums district. LockedEasy Stroll LockedSeasoned Explorer LockedHardened Survivor LockedNightmare Walker Locked