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 Fast and Deadly Graveyard Shift Defeat the Doc Defeat the Abomination Safe Hands Fully Operational Department Head Mass Grave Status Overload Skill Surge Untouchable On The Edge Bravado Strike First Blood Upgrade Complete Safe Return HQ Improvements Overkill Triple Threat One Man Army Combo Starter Survive the Nightmare Nightmare Veteran Nightmare Conqueror Nightmare Master Nightmare Speedrun Untouchable: Nightmare Pacifist Run Tavern Regular Double Kill Devastator Exterminator Last Man Standing Blitz War of Attrition Veteran Slayer Regular Customer Old Hand Chinatown ExplorerReach depth 100 in the Chinatown district. High SocietyReach depth 100 in the Wealthy district. Docks VeteranReach depth 100 in the Docks district. Slums SpelunkerReach depth 100 in the Slums district. Easy Stroll Seasoned Explorer Hardened Survivor Nightmare Walker