Free games like Rat Musou
Below are 9 free-to-play Steam games similar to Rat Musou, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Rat Musou page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to Rat Musou — no purchase or trial window.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 3
The Looker
Free-to-play alternative to Rat Musou — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 4
Awaria
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
Awaria is a short game about working in haunted maintenance tunnels.
- 5
The Expendabros
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 6
Iron Snout
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 7
![UNBEATABLE [white label] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1290490/header.jpg?t=1736770503)
UNBEATABLE [white label]
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
A young girl learns a song. An exclusive side-story set in the world of D-CELL GAMES' upcoming rhythm-adventure.
- 8
Star Fetchers
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
The introduction to a wild ride with gangsters and deep state conspiracy theories
- 9
Waves
Free-to-play alternative to Rat Musou — no purchase or trial window. Shares Action with Rat Musou.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!