Knife.io

Knife.io is a funny .io game in which you have to collect knives to throw at your opponents. Can you eliminate them all before the arena shrinks down to nothing?

How to play Knife.io?

Run through the arena collecting crates of knives. The knives you have will spin around your character. The more knives, the bigger the circle. Knives will protect you against attacks, but you can also throw them at your enemies.

While you play, the area will shrink. The aim is to eliminate all of your opponents before you run out of space.

Collect hearts, speed boost power-ups and other helpful items to stay fit and strong.

Play more free online games like Knife.io

If you enjoyed this game, take a look at this overview of all of the .io games you can play on our site for free. Gobble up entire cities in Hole.io, or defeat enemy spaceships in Space.io.

Who created Knife.io?

Knife.io was created by Mao Games.

When was Knife.io released?

This game was released on October 2, 2025.