Knife.io

Contains adsIn-app purchases
3.7
6.83K reviews
1M+
Downloads
Content rating
Everyone
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About this game

The most addictive and innovative io game!

Pick up knives and wrap them around yourself to fight with other guys in the arena.
Use both offensive and defensive modes to defeat your enemies smartly!

How to Play
*Hold&drag to move and attack enemies!
*Release to enter defensive mode

Designed by Sleeeeepfly Studios from China
Updated on
Oct 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App info and performance, and Device or other IDs
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.6
6.31K reviews
Karuna deka Deka
December 13, 2025
this game is trash . when i open it does not start it took me to the home screen.:)
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A Google user
March 8, 2019
This is a really fun game with lots of great stuff. The "everyone gets a chance" aspect of the game (defense mode) makes the game more fair. Going against bots makes it easy but more enjoyable. There should be a currency system we can buy knife skins and center skins with. Overall a fun game, with a knife theme. Also looks very satisfying. This is a great game and if you are reading this you should download it. Lol
313 people found this review helpful
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A Google user
April 2, 2019
there are a ton of skins which is good but I wish the game was online I also think that the way you get them is a little hard to do cuz I can't figure out what the heck in anti kill is also gold league the black hole it just doesn't work because you have an unbeatable mess it'll just keep eating and eating away at your knives also we can spawn in at random wherever which means that you can lose everything all in the blink of an eye just cuz it's some random placement plus the movement control
31 people found this review helpful
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What’s new

1. Fix some minor bugs
2. Optimize the gameplay
Join the battle now!