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Slay All Bosses: Idle is an incremental RPG where a level 1 hero auto-fights and evolves into a legendary slayer. Earn currency to upgrade weapons, skills, and passives through a persistent skill tree. Learn skills permanently, swap weapons freely, and tackle 15 challenging boss battles.

Lowest Price

3.99$
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Release Date

14 Apr, 2026

Publisher/Developer

Memoria Interactive

Reviews

Steam: 62.82% positive (49/78)
Metacritic: -

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Price Information for Slay All Bosses: Idle

Current Best Price: $3.99 at Steam

Game: Slay All Bosses: Idle

Platform: Steam

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Slay All Bosses: Idle description

Slay All Bosses: Idle is an incremental RPG where you start as a humble level 1 hero, barely able to fend off a pack of goblins, and forge them into a legendary slayer capable of defeating the deadliest foes. Your journey is driven by a rewarding loop of growth, experimentation, and strategic planning as you face progressively tougher challenges.

Your battles unfold through strategic auto-battles. Your chosen hero fights automatically, striking enemies and unleashing powerful Weapon Skills. Weapon Skills are tied to the weapon you have equipped, but after enough uses they are permanently learned, letting you freely swap weapons and experiment without losing progress. This system invites you to test different gear while preserving the progress you’ve earned on the road to glory.

Progression is player-driven. After every battle you earn currency used to advance your skill tree. The skill tree offers a variety of nodes, from raw stat boosts to gameplay-altering passive abilities that redefine how your hero fights. By choosing where to invest, you sculpt a build that emphasizes speed, damage, defense, or control, adapting to the threats you meet on your path.

Weapon & Skill Upgrades drive the core power curve. Each time your hero levels up, you gain Skill Points to unlock Weapon Upgrades and Skill Upgrades. Weapon Upgrades provide additional stat bonuses when equipped, making your weapons feel uniquely potent. Skill Upgrades enhance learned skills, enabling new effects such as applying status conditions, striking all enemies, or shortening cooldowns. You can spend Skill Points to transform skills into devastating tools of destruction, creating potent combos that overwhelm tougher foes.

Passive abilities and accessories add depth to your build. Equip accessories to gain passive bonuses and resistances. After enough battles you’ll permanently learn these passives and can equip them freely, limited only by your hero’s Ability Points (AP). Mix and match learned abilities to adapt to any challenge—no two runs look the same, and your hero evolves with every victory.

The game centers on a satisfying progression loop that blends character growth with weapon and skill upgrades. Expect a steady climb through stronger gear, more capable skills, and smarter combat tactics, all while facing escalating dangers and refining your approach with each new battle.

Key features include strategic auto-battles, 15 challenging boss battles, and a clear path of growth that rewards experimentation and persistence. Slay All Bosses: Idle invites you to craft a durable, adaptable slayer from a frail beginner into a force that can conquer the toughest bosses.