What is Catac.IO?

Catac.IO is a free .io game with fighting, upgrade and amongus elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Fight the imposters in this cat fight in space.

How to play Catac.IO

  1. Press "Play now" on the game screen. Catac.IO loads inside the player; some games take up to 20 seconds and may show a short ad first.
  2. Mouse only - Left click to dash
  3. Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.

Game details

Category.io
Tagsfighting, upgrade, amongus
ControlsMouse
ScreenLandscape (800 × 600)
PriceFree
Download or sign-upNot needed
Distributed byGameDistribution
Added to Gameziko30 September 2026

Description from the developer

Fight the imposters in this cat fight in space. Level up to improve your weapons and reach new best scores, gain coins and unlock among us accessories with your money!

Catac.IO: frequently asked questions

Is Catac.IO free to play?

Yes. Catac.IO is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.

What are the controls in Catac.IO?

The developer's instructions for Catac.IO say: "Mouse only - Left click to dash"

Can I play Catac.IO on a phone or tablet?

Catac.IO is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.

What games are similar to Catac.IO?

If you like Catac.IO, try Sploop.io, Dogod.io and Stick World. They are .io games with similar themes, and you can find more in the .io category on Gameziko.

Good to know

Catac.IO is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.