Maniacs Achievements Here is the full list of all 1 Maniacs achievement.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 if you are killed the boss then you are king of Maniacs.Discover the whole island and find the gun for kil the boss.