Mousebusters
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About Mousebusters
Mousebusters is a story-driven adventure game in which you play a person turned into a tiny mouse. With help from a fellow rodent called Chief, you investigate a haunted apartment building and try to break the curse by driving out the ghosts that prey on its residents.
Investigate the residents
Each apartment has a different ghost, but you must first work out where it is hiding. The ghosts prey on negative emotions, so you scout the building and uncover each resident’s biggest insecurities to draw them out. You need to avoid getting caught as you investigate.
Solve puzzles and fight ghosts
Chief guides you throughout each mission from his desk at HQ, offering advice and comedic commentary as you search the building and solve puzzles. Once you find the source of a resident’s troubles, you use a ray gun to perform an exorcism. Protect yourself from projectiles and target the ghosts’ weak points to expose their spectral cores.
Uncover the curse
Your investigations reveal evidence that something more ominous is happening in the building. Chief appears to know more about the curse than he lets on, and the story follows the conspiracy behind it.
Frequently asked questions
The best price for Mousebusters is $12.76 at Kinguin. That is 1% less than on Steam, where it costs $12.99. 2 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Mousebusters stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Mousebusters are: Windows 7, 2 GB RAM, 150 MB storage. It also runs on macOS. The recommended specs are in the System requirements section.
No. Mousebusters is a single-player game.
Yes. Valve rates Mousebusters as Verified on the Steam Deck: it runs well out of the box.
Buy Mousebusters 1% cheaper than on Steam.
Mousebusters is available for 1% less in shops such as Kinguin.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











