Alien Shooter TD Achievements Here is the full list of all 21 Alien Shooter TD 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 SergeantComplete 5 different missions on any difficulty level. LieutenantComplete 25 different missions on any difficulty level. MajorComplete 25 different missions on easy level, earning gold stars. ColonelComplete 25 different missions on medium level, earning gold stars. GeneralComplete 25 different missions on hard level, earning gold stars. Serial killerWipe out 1000 aliens. AnnihilatorWipe out 500000 aliens. MinerComplete 5 different missions on any difficulty level using only mines and explosives. TacticianComplete 5 different missions on any difficulty level using only Tactical Forces. SpecialistTrain any soldier up to level 30. GunsmithRecycle 100 weapons. CollectorEquip all troops with rare, unique and legendary weapons. Standard weapon should not be equipped. Rich manMission earnings: 10000 MagnateMission earnings: 100000 MoneybagsMission earnings: 500000 Junior expertComplete 5 different missions in an expert mode, earning gold shields. Senior expertComplete 25 dif1ferent missions in an expert mode, earning gold shields. Major ExpertComplete 35 different missions in an expert mode, earning gold shields. General-majorComplete 35 different missions on hard level, earning gold stars. HangmanKill the Boss in mission №35 on hard level of difficulty. ExecutionerKill the Boss in mission №40 on hard level of difficulty.