Concealment Achievements Full list of all 11 Concealment achievements.The base game contains 7 achievements, and there is 1 DLC pack containing 4 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 DLC Packs Group DLC packs together in list DLC Filter AllOwnedNone What are achievement flags? Click to find outApply Base Base Game (Excludes DLC) 70 7 311 (100%) First letterRead the first letter. ScullFind the scull. Bolt cutterFind the bolt cutter. SurvivorComplete the story. CreatureFace-to-face with the creature. Pyrotechnic engineerCreate a detonator. Kill the creatureKill the creature with an explosion. Update Anniversary Update 40 40 4 3.0011 (100%) Ready to goCollect all the necessary things in the apartment. Good endingComplete the game for a good ending. Bad endingComplete the game for a bad ending. Secret endingComplete the game for a secret ending.