Alien Slayers Achievements Here is the full list of all 23 Alien Slayers achievements.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonFirst MutantUse mutation for the first time 09 December 2025 - Add a guideQuest CompleteComplete the quest for the first time 09 December 2025 - Add a guideBlacksmithAcquire Gen1 Combined Weapon for the first time 09 December 2025 - Add a guideSurvivorSurvival success for the first time 09 December 2025 - Add a guideSurviveSurvival success for the first time 09 December 2025 - Add a guideRecruitTraining for the first time 09 December 2025 - Add a guideBoss HunterDefeat the boss monster for the first time 09 December 2025 - Add a guideBoss RushDefeat 100 Bosses Locked - Add a guideVeteranAll training completed Locked - Add a guideBiohazardApply mutations to all monsters in one mission Locked - Add a guideMacGyverAcquire Gen2 Combined Weapon for the first time Locked - Add a guideEngineerReach drone level 5 in one game Locked - Add a guideRegularRun the game 5 or more times Locked - Add a guideCollectorAcquire all drop items once in a game Locked - Add a guideAFKClear Normal difficulty without moving Locked - Add a guidePaydayEarn over 5,000 gold in a one game Locked - Add a guidePredatorKill 9,999 enemies in one game Locked - Add a guideArmoryHave 3 Combined weapons in one game Locked - Add a guideUndyingRestores 999 armor or health in one game Locked - Add a guideSlayer100 games played Locked - Add a guideStatue Locked - Add a guideDesert Ruler Locked - Add a guideWarlordExpert Difficulty Cleared Locked - Add a guide