.io Games

The Rise of IO Games

The first .io game was Agar.io. It was developed by Matheus Valadares in 2015 and gained significant popularity through the internet forum 4chan. The game revolves around cells that grow by eating agar and consuming other players. A few months after its release, the game was acquired by Miniclip, and a new game genre started to emerge based on the humble .io domain extension. 

The games that followed were focused on the growth mechanics that made Agar.io so popular, strengthening the idea of .io as a genre, not just a domain extension. There are now many grow games like Holey.io, taking this fast-paced survival concept further.

Most .io games work seamlessly on mobile devices and desktop since the controls are easy to learn. Browse the full collection on this page for all IO games, and be sure to check back regularly for the latest and greatest browser-based .io titles!

Snake IO Games

Snake.io, an online io game where you control a snake battling for survival against others, or Worm Hunt, where worms compete in a vibrant online arena, or Paper.io, which follows a similar simple yet addictive concept.

FPS IO Games

Fan favorites include Shell Shockers, a game featuring eggs armed with guns. Krunker is a pixelated FPS where you can battle players worldwide, whether casually for fun or competitively against hardcore fans. Deadshot.io is a fast-paced FPS where you battle players worldwide across dynamic maps, unlock weapons, and compete in various game modes.

Battle IO Games

1v1.lol is a competitive third-person shooter where you build strategically to outlast opponents in intense 1v1 battle royale matches. Diep.io is a survival .io game where you control a cannon-equipped circle, destroying enemies and upgrading your stats. Build Royale is a 2D battle royale where you build defenses, collect resources, and fight other players.

Animal IO Games

Fly or Die, is a game where you start off as a small fly, eat to level up, and evolve to consume other players. Ducklings is an IO game where you rescue ducklings, avoid dangers, and grow your nest into the best in the bay.

Popular IO Games

IO games have grown substantially to include any and every type of game, from egg-shattering FPS games like Shell Shockers and Krunker.io to survival battle royale games like Voxiom and Zombs Royale.

Some of our more popular .io games include Smash Karts, Bloxd, Skribbl.io, Taming.io, LOL Beans, Narrow One, Bonk.io — all worth a try,

If you like the simple gameplay of an IO game, you may also enjoy our Match 3 games or Mahjong.

How to Play IO Games

Many .io games are based on survival - growing your character by consuming food and slaying other players. Reach the top of the leaderboard by doing this repeatedly until you're the biggest! Most io games feature:

• A large online multiplayer arena with a competitive leaderboard.
• Simple mechanics that make gameplay possible for anyone.
• Players that consume food, and often other players, to grow bigger.
• Mostly a ‘survival of the fittest’ free-for-all, sometimes with cooperative gameplay.