Horror Nightmare Collection Achievements Full list of all 8 Horror Nightmare Collection achievements.The base game contains 6 achievements, and there is 1 DLC pack containing 2 achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 DLC Packs Group DLC packs together in list DLC Filter AllOwnedNone What are achievement flags? Click to find outApply AllWonNot won Base Base Game (Excludes DLC) 61 6 108 (80%) Forsaken PrisionComplete Forsaken Prision 19 June 2024 - Add a guideEvil CrowComplete Evil Crow Locked - Add a guidePauls Lost RemainsComplete Pauls Lost Remains Locked - Add a guideHaunted MineComplete Haunted Mine Locked - Add a guideTerror GnomeComplete Terror Gnome Locked - Add a guidePort To HellComplete Port To Hell Locked - Add a guide Add-on Unknown Pack 20 20 2 00 (0%) Deep SOUPComplete Deep SOUP Locked - Add a guideTerminal FleshComplete Terminal Flesh Locked - Add a guide