Mystery Island: Hidden Objects Achievements Here is the full list of all 5 Mystery Island: Hidden Objects 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 First Exploration Of SailingSailing a boat through a storm at sea Log In To Mysterious IslandLanding on the island, the mysterious plane wreckage was found Through The FogNavigate through a misty forest maze Secret InfiltrationEncountered betrayal, escaped death and sneaked into the base Rescue AmyFind your sister Amy and escape from the island together