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.io games

NEW Worm Zone: grow into the longest worm NEW SlitherCraft .io: The Block Snake Aquapark io: water slide race Guess the Drawing: Draw and Guess Online Helmet Royale.io Hole.io

Free Online IO Games

IO games are one of the most popular phenomena in browser gaming. Their formula is simple and addictive: you enter an arena shared with other real players, start out small and have to grow, survive and climb the leaderboard. Here we've gathered free .io games that load instantly, with no downloads or sign-ups.

The genre was born with titles like Agar.io and Slither.io, and it hasn't stopped growing since. In this category you'll find games where you control a cell or a snake that feeds to get bigger, territory-conquest games where you paint the map, shooters in open arenas, tank battles, survival games where you gather resources and build, and battle royale matches where only the last survivor wins.

.io Games for PC and Mobile

Most io games are controlled with just the mouse or a few keys, so learning to play takes seconds, although mastering them requires practice and good reflexes. Many also work on phones and tablets with touch controls. Since they're online multiplayer games, you need an internet connection to play against the other participants.

Matches are quick: if you get eliminated, you start again in a moment and try a different strategy. Many games let you customize your character with skins and choose your name to show off on the leaderboard. Explore our selection of the best io games, from the classics to the latest releases in the genre, and find your spot at the top of the table.

Looking for something else? Check out Casual Games, Educational Games or Logic games, or browse all our games you can play in your browser.

Best .io games

  1. 1Hole.ioHole.io is a multiplayer .io game where you control a black hole that grows by absorbing objects. Compete to devour more.
  2. 2Worm Zone: Grow Into the Longest WormWorm Zone: eat everything you find, speed up to cut off other worms and become the longest on the map. Play free online!
  3. 3SlitherCraft .io: the block snakeSlitherCraft .io: guide your pixelated block snake, eat cubes, grow nonstop and compete with players from around the world. Play free online!
  4. 4Aquapark io: water slide raceAquapark io: launch yourself down giant slides, overtake your rivals and reach the pool first without flying off. Play free online!
  5. 5Guess the Drawing: Draw and Guess OnlineGuess the Drawing online: take turns drawing, guess what others sketch and create private rooms with friends. Free online game!
  6. 6Helmet Royale.ioHelmet Royale is a thrilling multiplayer battle royale game. Survive, upgrade your gear, and be the last one standing. Play now!

Frequently asked questions about .io games

Are .io games free?

Yes. All .io games on LudoRex are free and play online in your browser, with no downloads or sign-up.

Can I play them on mobile?

Yes. Most .io games work on phones and tablets (Android and iPhone) as well as on computers: just open the game and press Play.

What are the best .io games?

Right now LudoRex players' favourites are Hole.io, Worm Zone: Grow Into the Longest Worm and SlitherCraft .io: the block snake. The list is updated with players' votes.

How many .io games are there on LudoRex?

There are currently 6 .io games, and new ones are added often.

What other similar games are there?

If you like .io games, also try: Casual Games, Educational Games, Logic games, Puzzle Games, Agility, skill, and reflex games.