.IO Games: From the Classics to Today
Looking for a list of .IO games you can play in your browser? I originally published this list in April 2016 during the early .IO game boom, when games like Agar.io and Slither.io were becoming incredibly popular. Since then, some of the original games have disappeared while others are still going strong.
I’ve updated the list for 2026 to include classic .IO games that are still playable, newer games worth checking out, and some of the old games that are no longer available.
Classic .IO Games Still Online
Agar.io
Agar.io is one of the games that helped kick off the .IO game craze. You start as a small cell and move around the map eating pellets and smaller players to grow larger, while trying to avoid bigger players that can swallow you. Simple idea, but surprisingly addictive. Click here to visit Agar.io.
Diep.io
Diep.io is a multiplayer tank game where you destroy shapes and other players to earn experience and level up. As you progress, you can upgrade your tank’s stats and choose different tank classes, giving the game more strategy than you might expect from a browser game. Click here to visit Diep.io.
Slither.io
Slither.io is a multiplayer game where you control a snake-like creature, collect glowing orbs, and grow longer as you play. You can eliminate other players by getting them to crash into your body, but one wrong move can end your run no matter how large you’ve become. Click here to visit Slither.io.
Wings.io
Wings.io is a fast-paced multiplayer airplane combat game where you fly around the battlefield collecting weapons and power-ups while fighting other players. Different weapons appear throughout the map, and surviving means keeping your plane moving while lining up your own attacks. Click here to visit Wings.io.
More .IO Games to Play
The .IO game genre has grown quite a bit since I originally published this list in 2016. Here are some more .IO games that are still available to play today.
Bloxd.io
Bloxd.io is a multiplayer block-style game with a variety of different game modes. You can play survival, parkour, BedWars, SkyWars, OneBlock, and other modes, including worlds created by other players. If you enjoy Minecraft-style building and exploration mixed with competitive multiplayer, there’s quite a bit to do here. Click here to visit Bloxd.io.
Krunker.io
Krunker.io is a fast-paced multiplayer first-person shooter that runs directly in your browser. It features different character classes, weapons, maps, and game modes, along with custom games and community-created content. It’s a good choice if you want something more competitive than the typical .IO arena game. Click here to visit Krunker.io.
MooMoo.io
MooMoo.io is a multiplayer survival game where you gather resources, build a village, and defend yourself from other players. You can collect wood, stone, and food, build walls and other structures, and upgrade your equipment as you progress. Click here to visit MooMoo.io.
Smash Karts
Smash Karts is a multiplayer kart battle game where you drive around an arena collecting weapons and using them against other players. Instead of racing toward a finish line, the goal is to take out your opponents while avoiding their attacks and surviving the chaos. Click here to visit SmashKarts.
Venge.io
Venge.io is a fast-paced multiplayer first-person shooter that you can play directly in your browser. You can choose from different heroes, weapons, and abilities while competing against other players across several game modes and community-created maps. Click here to visit Venge.io.
YoHoHo.io
YoHoHo.io is a pirate-themed battle royale game that you can play directly in your browser. You collect doubloons to grow stronger, battle other pirates for their treasure, and try to be the last player surviving on the island as the playable area becomes more dangerous. Click here to visit YoHoHo.io.
Swordbattle.io
Swordbattle.io is a multiplayer browser game where you collect coins, open chests, and battle other players with your sword. As you collect more coins you grow stronger, level up, and unlock evolutions with different abilities, while trying to survive against other players on the map. Click here to visit Swordbattle.io.
Old .IO Games That Shut Down
Cursors.io
Cursors.io was a cooperative browser game where players controlled their mouse cursors through a series of rooms and puzzles. Some areas required players to work together by standing on buttons or activating switches so others could continue. The original Cursors.io is no longer available, but it remains one of the more unusual games from the early .IO era.
SuperSnake.io
SuperSnake.io was a multiplayer snake game where you collected food to grow larger while competing against other players. Unlike Slither.io, SuperSnake.io included additional gameplay elements such as obstacles and different items scattered around the map. The original SuperSnake.io is no longer available.
Vertix.io
Vertix.io was a fast-paced multiplayer shooter played from a top-down perspective. Players could choose different character classes and battle each other across several maps and game modes. The original Vertix.io is no longer available, but it was one of the more polished competitive .IO games from the early days of the genre.
What Are .IO Games?
.IO games are usually simple multiplayer games that can be played directly in a web browser without installing a traditional game client. Many are easy to jump into, with short matches and simple controls, but they can become surprisingly competitive.
The “.io” part actually comes from the .io domain extension, but after the success of games like Agar.io, the name became associated with an entire style of browser-based multiplayer games. Not every game called an “.IO game” uses a .io domain today, but the name has stuck.
.IO games have changed a lot since I first put this list together in 2016, and I’m sure they’ll keep changing. I’ll continue updating this page as I come across more browser-based .IO games worth adding. If you know of one I’ve missed, feel free to leave a comment below.