Alien Zombie Megadeath Achievements Here is the full list of all 13 Alien Zombie Megadeath 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 Basic TrainingComplete the introduction training level. My First SpacesuitUnlock one of the extra Spacesuits. Galaxy ExplorerUnlock 20 levels. 3 Million Total ScoreGet a combined total score of 3 million on all levels. UFOUnlock the UFO upgrade. Universe ExplorerUnlock all the levels. 2 Million Individual ScoreScore 2 million on any single level. Wardrobe CompleteUnlock all of the extra Spacesuits. 30 Million Total ScoreGet a combined total score of 30 million on all levels. CleansedComplete all the adventure levels. The blue ones! All the MedalsEasy! Collect all the medals. 5x MultiplierGet the multiplier to x5 10x MultiplierGet the multiplier to x10