Mobile Astro Achievements Here is the full list of all 4 Mobile Astro 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 Galactic SaviorCompleted Arcade mode. Survival ExpertReached wave 20 in Survival mode. PeacekeeperCompleted Arcade EX mode. Combat SpecialistCompleted Boss Rush mode.