Key Takeaways
- Kaiju Cleaner Simulator announced on October 16, 2025, by One More Time.
- Described as a “hilarious cooperative simulator” about cleaning cities post-kaiju battles.
- Supports up to four-player co-op, with roles like machine operator and organ harvester.
- Inspired by the manga Kaiju No. 8 and its anime adaptation.
- Playtest expected in early 2026; no release date confirmed yet.
Cleaning Up After the Monsters
Indie developer One More Time, best known for Tavern Manager Simulator, has unveiled its newest project — Kaiju Cleaner Simulator. Revealed on October 16, 2025, during IGN Fall Fan Fest 2025, the game puts players in charge of cleaning up cities left in ruins after titanic kaiju battles.
Described as a “hilarious cooperative simulator,” Kaiju Cleaner Simulator lets players scrub away destruction, collect monster remains, and repair the aftermath of city-scale chaos. According to the developers, while it’s fully playable solo, the experience “truly shines with friends.” Up to four players can team up, splitting duties like machine operation, cleanup, and organ harvesting to maximize efficiency and fun.
From Monster Carnage to Cooperative Comedy
In a press release, One More Time shared that the idea for Kaiju Cleaner Simulator came after watching the anime adaptation of Kaiju No. 8. “Maybe being a kaiju cleaner is even tougher than being their exterminator,” the studio wrote. “It’s a job for real tough guys. Our game is for those who aren’t afraid to get their hands dirty and turn chaos into fun.”
The game aims to blend humor, teamwork, and unconventional problem-solving as players tackle the messy aftermath of monster rampages — from scrubbing skyscraper walls to salvaging kaiju organs.
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Early 2026 Playtest Planned
Though Kaiju Cleaner Simulator doesn’t yet have a confirmed release date, the team at One More Time is preparing for an early 2026 playtest, hinting that players won’t have to wait long to experience the chaos firsthand.
With their previous title, Tavern Manager Simulator, enjoying a “Very Positive” reception on Steam, expectations are high for another inventive, community-driven indie hit. If cleaning up monster guts with friends sounds like a good time, Kaiju Cleaner Simulator may be the next cult co-op sensation.
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