Investigation Achievements Here is the full list of all 7 Investigation 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 Cold CaseFind Johns Body Rest In PeaceFind Ambrose's Tape Haunted DreamsEnter the Flashback Hall From HellEnter the Hospital Missing DetectiveBe killed by the entity How To Breath?Learn how to breath with the help of Dr. Todd InvestigationBeat the Nightmare