Hypercasual .IO Battle 105 HTML5 191 Action 402 Multiplayer 44 Online 9 IO 2 Mobile & Desktop Portrait Free to play

About Knife.io

Knife.io is a free online hypercasual game you can play right here in your browser. Knife.io is multiplayer new io game. Addictive and innovative io game! Collect blades, knife, weapon and use your spin to slay your enemies in this furious sword mayhem! Who will survive in this crazy IO battle of guts and steel?

How to Play Knife.io

Use mouse to play.

Knife.io Tips & Features

Instant play — no download, no plugins, no registration. Knife.io runs directly in your browser.
100% free — every game on AI Browser Games is free to play, forever.
Tagged under Battle
Tagged under HTML5
Tagged under Action
Real-time multiplayer - compete against players worldwide
Tagged under Online
Tagged under IO
More Hypercasual games — explore the full Hypercasual collection for more titles like Knife.io.

Knife.io FAQ

What is Knife.io?

Knife.io is a free online hypercasual game you can play instantly in your browser on AI Browser Games - no download, no installation and no registration required.

How do you play Knife.io?

Open the game above and it starts immediately. Use mouse to play. The full controls are explained in the How to Play section below.

Can I play Knife.io on mobile?

Yes. Knife.io is built with HTML5 and works on phones and tablets as well as desktop computers - just open the page and tap play.

Is Knife.io free to play?

Yes, Knife.io is completely free. Every game on AI Browser Games runs in your browser, so there is nothing to buy and nothing to install.