Invasion Achievements Here is the full list of all 19 Invasion 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 100 ufos killerKill 100 ufos 500 ufos killerKill 500 ufos 2k ufos killerKill 2k ufos 10k ufos killerKill 10k ufos 50k ufos killerKill 50k ufos Multikill4-9 kills per time Megakill10-20 kills per time Ultrakill21+ kills per time Cross eyedFiring accuracy <= 10% Sure shotFiring accuracy >= 95% Dead shotFiring accuracy == 100% Lucky devilFinish level with 1hp Lucky boyFinish level without damage Undead10 deaths in row Banana headKill self Butt headKill self by nuke Nuke expertUse 9+ nukes per level Nuke maniacUse 21+ nukes per level Nuclear winterUse 666+ nukes