Alien Crusader Achievements Here is the full list of all 70 Alien Crusader 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 Play Stage 1 Play Stage 2 Play Stage 3 Play Stage 4 Play Stage 5 Play Stage 6 Play Stage 7 Play Stage 8 Play Stage 9 Play Stage 10 Play Stage 11 Play Stage 12 Play Stage 13 Play Stage 14 Play Stage 15 Play Stage 16 Play Stage 17 Play Stage 18 Play Stage 19 Play Stage 20 Play Stage 21 Play Stage 22 Play Stage 23 Play Stage 24 Play Stage 25 Clear Stage 1 Clear Stage 2 Clear Stage 3 Clear Stage 4 Clear Stage 5 Clear Stage 6 Clear Stage 7 Clear Stage 8 Clear Stage 9 Clear Stage 10 Clear Stage 11 Clear Stage 12 Clear Stage 13 Clear Stage 14 Clear Stage 15 Clear Stage 16 Clear Stage 17 Clear Stage 18 Clear Stage 19 Clear Stage 20 Clear Stage 21 Clear Stage 22 Clear Stage 23 Clear Stage 24 Clear Stage 25 View Profile View High Scores View Heroes This Week View Personal High Scores View Options Enter Shop Buy Upgrade In Shop View Premium View Spacecoins Boss Kill, Stage 3 Boss Kill, Stage 6 Boss Kill, Stage 9 Boss Kill, Stage 10 Boss Kill, Stage 13 Boss Kill, Stage 14 Boss Kill, Stage 18 Boss Kill, Stage 25 Double Boss Kill, Stage 15 Double Boss Kill, Stage 17 Double Boss Kill, Stage 19