Alien Colosseum Achievements Here is the full list of all 25 Alien Colosseum 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 Don't BlinkFinished the first day on an alien planet This is the wayRecruit your first fighter Don't Get CockyDefeat 10 enemies of any kind First of ManyWin one fight in the arena Successful trip to the moonUnlocked Rank C fights You are a clan of twoRecruit your second fighter Ain't No Rest for the WickedDefeat 50 enemies of any kind Smells Like Teen SpiritWin 5 fights in the arena Practice makes perfectUnlocked Rank B fights I Like Those OddsRecruit your third fighter Who Needs Sleep?Defeat 100 enemies of any kind One Small Step for ManWin 10 fights in the arena Well done is better than well saidUnlocked Rank A fights Where Do They Go?Defeat 200 enemies of any kind One Giant Leap for MankindWin 20 fights in the arena I came, I saw, I conqueredUnlocked Rank AE fights Here Comes the SunFinished one local planet month on an alien planet Life on Earth?Finished one local planet year on an alien planet PaladinUse the Paladin class with a fighter HarbingerUse the Harbinger class with a fighter Tech MageUse the Tech Mage class with a fighter Terra DefenderUse the Terra Defender class with a fighter Ecliptic PathwalkerUse the Ecliptic Pathwalker class with a fighter A Whole New WorldWent on an adventure to the Cobalt Caverns To Boldly GoDeparted for an adventure on a new planet