IDLE BOSS RUSH

Released Sep 2025

Slay giant bosses and turn the hollow wasteland into the almighty kingdom! Endlessly rewarding incremental game where you collect fountains of rare loot, unleash crazy combos and watch the monsters fall under your knees. Boss Rush that keeps on going when you're gone!

66% positive · 844 reviews

Not yet

Released, but still in active development

High confidence

Active Development

Not yet

Released, but still in active development

High confidence

Active Development

Where to buy

Steam Updated 11 Oct 2026 $9.99

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Evaluation

Idle Boss Rush launched on September 29, 2025 and has received a steady stream of updates since then. Three major content updates have shipped post-launch: Update 1.1 (October 12, 2025) added boss level scaling and new skill tree nodes; Update 1.2 (February 28, 2026) added a new boss rush mode, leaderboards, and a new item collection; and Update 1.3 (April 20, 2026) added a new structure, a new unit (Ice Giant), a new Boss Rush mode, and localization for five languages. Between these, the developer also shipped several smaller feature and bug-fix patches in the weeks following launch. On January 23, 2026, the developer published a roadmap post acknowledging that real-life circumstances had caused a slowdown and some communication gaps, but explicitly stated they are "back to consistently working on new updates" and shared a schedule for upcoming releases. The subsequent shipping of Update 1.2 (February 2026) and Update 1.3 (April 2026) confirms the developer followed through on that commitment. This establishes a sustained pattern of major updates roughly every 2–3 months since launch, with the most recent major release on April 20, 2026 — approximately two months before today's date of June 18, 2026. That places the game comfortably within its established update window, and the developer has not announced that content development is winding down.

Evidence

Update 1.3 ships new Diner structure, Ice Giant unit, Boss Rush mode, and localization for 5 languages — the most recent major content release.

news post · Apr 20, 2026 source content shipped

high

Update 1.2 ships new boss, boss-specific leaderboards, and new item collection, confirming the developer followed through on the January roadmap.

news post · Feb 28, 2026 source content shipped

high

Media

Details

Developer

Irid Games

Publisher

Irid Games

Achievements

Platform

Windows

Controller

—

Steam Deck

Playable

Players

Single-player

Incremental Idler Building Strategy Base Building Casual RPG Resource Management Economy Boss Rush Management Indie Pixel Graphics City Builder Colony Sim

About this game

IDLE BOSS RUSH is an incremental, idle game with epic boss fights, where you progress even if you're not playing. Advance from a wretched camp to a lively city by raising an army able to slay giants.

Slay Giant Bosses

There are no mere monsters here. Every enemy takes time or a good strategy to beat. Every kill matters. Giants can be seen from any point in the town—melting right before your eyes.

Build a Kingdom

Customize your land as you progress from a simple town to a grand kingdom by raising an army able to slay giants. Manage your town's residents and resources. Strategically select structures and synergetic upgrades to your liking.

Always Advancing

Want to go make a coffee? Your troops will fight on their own and you come back to collect the loot. Take over and optimize your build for specific bosses to progress faster. Keep the preferred balance between active and passive gameplay.

Discover Crazy Combos

Upgrade items to discover additional unique effects. Select advisors specialized in either military, economy, or magic. Equip advisors with powerful items. Combine it with synergetic town upgrades to unleash crazy combos to annihilate bosses even faster.