Flat Worlds Achievements Here is the full list of all 7 Flat Worlds 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 Red PlanetColonize Mars Goddess of LavaColonize Venus Not the ContinentColonize Europa The MessengerColonize Mercury Primordial BeingColonize Titan Stolen DwarfColonize Triton King of the FairiesColonize Oberon