Slay All Bosses: Idle Achievements Here is the full list of all 27 Slay All Bosses: Idle 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 Full PotentialComplete any character's upgrade tree. Max DamageDeal 99999+ damage with a single attack. Staff CollectorObtain all staves. Sword CollectorObtain all swords. Ninja Weapon CollectorObtain all daggers and claws. Master MageLearn all the Sorceress's skills. Master SwordsmanLearn all the Swordmaster's skills. Master ShinobiLearn all the Assassin's skills. Max LevelReach level 50 with any character, Maximum BonusLevel up every zone to their maximum level. Weapon EnhancerPurchase your first weapon stat upgrade. Skill EnhancerPurchase your first skill upgrade. Goblin Chieftain SlainSlay the Goblin Chieftain. Minotaurus SlainSlay the Minotaurus. Elder Treant SlainSlay the Elder Treant. Spirit Shadow SlainSlay the Spirit Shadow, Jormungandr SlainSlay the Jormungandr. Ancient Weapon SlainSlay the Ancient Weapon. Kirin SlainSlay the Kirin. Spectral Reaper SlainSlay the Spectral Reaper. Demon Mantis SlainSlay the Demon Mantis. Berserker SlainSlay the Berserker. Chimera SlainSlay the Chimera. Kaiju SlainSlay the Kaiju. Goddess SlainSlay the Goddess. Xelzoros SlainSlay Xelzoros. Abaddon SlainSlay Abaddon.