Tranquil Isle Achievements Here is the full list of all 7 Tranquil Isle 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 BobBuild 50 buildings. First BuildingBuild your first building. LearnerFinish the tutorial. SandboxCreate a Sandbox Island. Save as SandboxSave an Island from Classic or Quick mode as a Sandbox Island. Been around the world, don't speak the languageExplore 30 islands. Happy accidentsApply a color palette to your islands.