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About
Fast, frantic and full of blasting fun – take to the rat-tlefield and join the Ratz Instagib revolution! Duke it out as a railgun-toting rat in household-themed arenas, with every shot being a potential kill – no shooting opponents repeatedly to little effect or suffering cheap deaths at the hands of people with an unfair [link deleted]'s every rat for themselves!
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Game features
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Description
Fast, frantic and full of blasting fun – take to the rat-tlefield and join the Ratz Instagib revolution!
Duke it out as a railgun-toting rat in household-themed arenas, with every shot being a potential kill – no shooting opponents repeatedly to little effect or suffering cheap deaths at the hands of people with an unfair advantage. It's every rat for themselves!
- One Gun, One Shot – An even playing field means almost anyone can immediately pick up Ratz and start having fun, no matter what their FPS skill level.
- Rocket Jumping – Use the dedicated 'Rocket Jump' button to mix up your movement; moving targets are harder to hit!
- Maps – Enjoy 13 different maps based on real-world household environments, plus tonnes of user-created arenas!
- Customisation – Unlock loads of customisation items to jazz up your Ratz, then choose from loads of beam and frag types to really show off your style.
- Modes – The best that FPS action has to offer: Deathmatch, Team Deathmatch, Capture The Flag and the almighty Freeze Tag!
- Stats and Leaderboards – Fully integrated stat-tracking and leaderboards to help keep track of your progress… can you become the best rat around?
- RatzEd Map Editor – Create your own stages and share them with the community via Steam Workshop – easy to use, but incredibly versatile
Recommended system requirements
minimum*
- OS *:
- Windows XP
- Processor:
- Intel i3 Processor, 2.0GHz
- Memory:
- 2 GB RAM
- Graphics:
- Intel HD 4000 Integrated Graphics (256MB)
- DirectX:
- Version 9.0
- Network:
- Broadband Internet connection
- Storage:
- 600 MB available space
- Sound Card:
- Any compatible soundcard
- Additional Notes:
- Mouse/Keyboard required; turn off anti-aliasing/outlines to maximise framerate
recommended*
- OS *:
- Windows 7
- Processor:
- Intel i5 Processor, 2.8GHz
- Memory:
- 4 GB RAM
- Graphics:
- NVIDIA GeForce GTX 650 or similar dedicated graphics card
- DirectX:
- Version 9.0
- Network:
- Broadband Internet connection
- Storage:
- 600 MB available space
- Sound Card:
- Any compatible soundcard
- Additional Notes:
- Mouse/Keyboard required
User reviews
Chewbaccacheeks
Not recommended | 18 Jan 2026
22.0h played
wtf they removed the dedicated server files like 11 years after the game came out i used to play this with friends over lan but literally cannot do that """""legally""""" anymore.
Helpful: 19
Eternal Eclipse
Recommended | 23 Mar 2026
15.9h played
Ratz instagib has changed my life. What an amazing game. You think im joking but I wake up seeing the rats, the rats are hiding just beneath the eyelids. I dream about them, I commute to work with my railgun now,
Helpful: 9
Macintoy
Recommended | 09 Jul 2026
12.8h played
superfun first person shooter. its like the took the best of quake2-3 and distilled it down to its base essence: the railgun, the rocket jump and super fast tight arena play. highly recommended!
Helpful: 0
edo9k
Recommended | 05 Jul 2026
25.2h played
There's close to zero players at any given time but it's usually on discount for 1$ so I just buy it for all my friends to fill a server and it's some of the most fun you can have, lan party type shi.
Helpful: 0
The Cup
Not recommended | 19 Feb 2026
8.1h played
This game is very fun if it was played with friends and cheap, but its not fun when it costs 4 people $9 each to play a incredible bar bones game, I genuinely love the game, buts its insane to be $9 when you can buy
Helpful: 1
SPUTNIK
Recommended | 13 Feb 2026
5.4h played
Fun Game with good Music. Its hard especially against veterans but you can get the hang of it real quick + community is very friendly
Helpful: 1