Galactic Tower Defense Achievements Here is the full list of all 11 Galactic 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 SEASONED5 Game-play hours. TRY HARD50 mission attempts. YOUR A WINNER12 mission victories. LIKE A BOSSSpawn 400 towers FINGERS R' US2000 mouse clicks DROP IT LIKE ITS HOTTower hit by 50 enemy bombs. KNOWLEDGEABLESpend 40 research points. BIG SPENDERSpend 100,000 credits. NEGATIVE GHOST RIDER, THE PATTERN IS FULL150 enemy aircraft bombing runs. THANK YOU!Play early access. GAME ON!Play 1 mission