Invasion From Space Achievements Here is the full list of all 18 Invasion From Space 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 First BloodShoot one Invader Warm UpDestroy 100 Invaders Trigger-HappyDestroy 1000 Invaders Earth LoverDestroy 5000 Invaders It's PersonalDestroy 10 000 Invaders A True EnthusiastDestroy 50 000 Invaders You should play another gameDestroy 100 000 Invaders Rookie SniperObtain a chain of 5 Professional SniperObtain a chain of 10 Experienced SniperObtain a chain of 15 Alpha SniperObtain a chain of 20 Apex SniperObtain a chain of 25 Cyborg SniperObtain a chain of 30 Godlike SniperObtain a chain of 35 Purist NoviceSurvive 1 Wave in Purist Mode Purist RookieSurvive 3 waves in Purist Mode Purist TalentSurvive 5 waves in Purist Mode Purist ProfessionalSurvive 7 waves in Purist Mode