Left in the Dark: No One on Board Achievements Here is the full list of all 13 Left in the Dark: No One on Board achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.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 MasterFinish the game in Expert Mode. Fast FingersYou found four objects in four seconds in a Hidden-Object Puzzle. ArcherComplete a Hidden-Object Puzzle in less than one minute. SapperComplete a minigame in less than one minute. InvincibleComplete all Hidden-Object Puzzles without using the Hint button. SniperComplete a Hidden-Object Puzzle with no more than three mis-taps. ForemanFix the sailboat. GuideFind the lighthouse without getting lost. NavigatorSwim to the Devil Island without getting lost. DetectiveUnmask the Hookman. FugitiveGet out of the trap. GeniusComplete all minigames without using the Skip button. CollectorUnlock all achievements.