Polybius Invaders Achievements Here is the full list of all 13 Polybius Invaders achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonCompleted 1st StageIt's not so bad 18 October 2025 - Add a guideSubliminal's ActivatedLet Me Control Your Mind 18 October 2025 - Add a guideDestroyed 40 Plus UFO'sBonus Level Achievement Locked - Add a guideDestroyed 50 Plus UFO'sBonus Level Achievement Locked - Add a guidePolybiusBonus Level Achievement Locked - Add a guideDefeated 1st BossWe Come in Peace! Shoot to Kill Locked - Add a guideDefeated 2nd BossSmoke me a kipper Locked - Add a guideDefeated 3rd BossTerminated Locked - Add a guideDefeated 4th BossI still aint getting on no plane! Locked - Add a guideDefeated General GooLook at me, I'm the King of the World!! Locked - Add a guideCredits UnlockedDevine Powers granted to you Locked - Add a guideInfra-Sound ActivatedFeel the Fear Locked - Add a guideMaximum HealthHealth bar is at maximum health Locked - Add a guide