CatBun Idle

CatBun Idle is a pixel-art idle RPG where you recruit companions and send them through 40 hand-crafted areas. Tap to deal damage, activate skills at the right moment and push toward the final boss. Defeating it lets you Prestige, exchange progress for Stardust and buy permanent upgrades before starting again stronger. Your crew keeps fighting while you are away.

Choose your hero

The game has five playable heroes, each with a distinct passive ability. Matsu deals heavy damage from the start, Miya boosts tap damage, Riku increases automatic damage per second, Cleo earns you more gold, and Kaos extends skill durations. You unlock heroes as you progress and can switch between them freely.

Build your companion crew

Recruit 40 companions across four tiers: catgirls and bunnies in tier 1; wolves and kitsune in tier 2; shadow cats and crystal bunnies in tier 3; and void fairies and chaos heralds in tier 4. Each companion upgrades at levels 10, 25 and 50. The crew includes click companions that increase tap damage and DPS companions that fight in the background. Level both members of a pair to activate one of 25 synergy bonuses, which multiply the power of your whole crew.

Prestige and progression

Defeat the boss in area 40 to Prestige, earn Stardust and spend it on 16 permanent shop upgrades. As your Prestige count rises, you automatically unlock 20 Prestige Talent milestones. At Prestige 10, Ascension opens a second progression layer with its own Moondust currency and shop. Once unlocked, an Energy Bar system replaces cooldowns and lets you chain skills freely.

Skills and challenges

CatBun Idle has four active skills: Cat Frenzy, Rally, Gold Rush and Catball. Boss fights use shield cycles, enrage at 25% HP and have a 30-second timer. Three daily missions refresh at midnight UTC, with objectives including kill counts, tap goals, skill uses and boss clears. Other modes include a weekly challenge, Boss Rush with 40 consecutive bosses, and an Endless post-game mode. Seven hidden upgrades unlock when you reach secret stat thresholds, and 30 achievements track gameplay milestones.

Idle rewards and extras

Gold accumulates while you are away, for up to eight hours by default; Prestige upgrades can extend this limit. Returning gives you a welcome-back bonus, and you can continue from where you left off. The game also includes an original 45-track soundtrack, with a separate theme for every area, Steam Cloud saves with three save slots and 40 Steam achievements.