UFO: Extraterrestrials Platinum Achievements Here is the full list of all 21 UFO: Extraterrestrials Platinum 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 SurvivorFinish game on any difficulty HeroFinish game on hard difficulty WarriorKill 50 aliens CleanerKill 500 aliens PilotShoot down 25 alien ships AceShoot down 100 alien ships FlakShoot down alien battleship CharmerCapture live alien commanders EmperorBuild 3 bases HypersonicWin mission in 10 turns SafekeeperBuild 15 defense buildings ConquerorClean alien base GrenadierThrow 100 grenades AirborneFly 15 planes on the globe at the same time VeteranReach Colonel rank with one of your soldiers Tough SkinWin 100 missions LiquidatorShoot down alien battlecruiser ProtectorFinish terror mission with less than 2 civil casualties LifesaverFinish mission without being seriously wounded RazorbladeFinish mission without being hit No Flight ZoneEliminate UFO swarm leader