Hidden Through Time Achievements Here is the full list of all 19 Hidden Through Time achievements. It takes around 6-8 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 Flag Filter All None 9 Offline Mode 5 Online Mode 5 Online/Offline 19 Single Player 1 Main Storyline 11 Cumulative + Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply Found you!Find an objective It's right there!Find 10 objectives Those are rookie numbers!Find 25 objectives You think your objectives are safe?Find 50 objectives I will find them!Find 100 Objectives SweepedFind all objectives of a map Map ScannerFind All Objectives of 5 maps Ten Times TrackerFind All Objectives of 10 maps Fifteen Fully FoundFind All Objectives of 15 maps Compulsive SearcherFind All Objectives of all maps We've struck rock!Find All Cavemen Objectives It's good to find the King.Find All Medieval Objectives Track like an Egyptian.Find All Egyptian Objectives It's high noonFind All Western Objectives Part of the community.Complete an online map Online TrackingComplete 5 online maps Under the FirewallComplete 10 online maps Deep Web SearcherComplete 25 online maps Online Search EngineComplete 50 online maps