Space Tower Defense Achievements Here is the full list of all 11 Space Tower Defense 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 Launch the GameFirst Launch Second LieutenantComplete the level “Set Sail” First LieutenantComplete the level “Encirclement” CaptainComplete the level “Frontline” MajorComplete the level “Lost Node” Lieutenant ColonelComplete the level “Last Stand” ColonelComplete the level “Twin Super Battleships Assault” Brigadier GeneralComplete the level “Twin Fall Finale” Major GeneralComplete the level “Parallel Shadows” Lieutenant GeneralComplete the level “Core Collapse” GeneralComplete the level “Critical Point”