• Deeeep Io
    Play
    Deeeep Io
    Played 6221 times

    Crazy things are happening deep under the surface of the virtual ocean featured in this io game. Tons of players from around the world are challenging one another in an epic fight for survival. Take control of one of these cute sea creatures and prepare for battle. Gobble up lots of pellets while you try to defeat your opponents by eating them!

  • Skribbl.Io
    Play
    Skribbl.Io
    Played 70986 times

    You can compete against players from all across the globe in this fun and exciting io game. Put your creative skills to the test while you try to figure out the other players’ drawings. Will they be able to identify yours too?

  • Agar.io
    Play
    Agar.io
    Played 25941 times
  • Doblons.io
    Play
    Doblons.io
    Played 17180 times

    Set sail in a battleship and take on players from all around the world in this io game. Make your ship totally awesome by collecting coins and adding guns, stronger armor and much more.

  • Slither.io
    Play
    Slither.io
    Played 131197 times

    A new version of the super popular game Agar.io is available now! This time with very colorful slithers! Grow as big as you can and block the way of other slithers to kill them.

  • Moomoo.Io
    Play
    Moomoo.Io
    Played 20853 times

    Who knew that farming could be so intense? Fight for resources while you take on an international group of players in this crazy io game. You’ll need to collect stones, food and wood in order to construct a farm and build weapons that will help keep you safe.

  • Starblast Io
    Play
    Starblast Io
    Played 12540 times

    A thrilling battle awaits you in this asteroid field. Take control of an interstellar fighter and get ready to challenge players from all around the world and possibly beyond! How long will you survive against their blasters and other weapons in this epic io game?

  • Paper.Io
    Play
    Paper.Io
    Played 43589 times

    Can you outwit and outlast the other players in this unique io game? Build zones while you create paths and see if you can trick your opponents into crashing into them. You’ll need to stay on your toes though. You’ll blow up if you hit your own path!

  • Brawls.io
    Play
    Brawls.io
    Played 12565 times

    What a beautiful day! The sun is shining and the birds are singing. Great time for a brawl, eh? Punch, kick and attack players from around the world in this epic io game. You can even modify your fighter with cool clothing and tattoos. How long will you last before you have to tap out?

  • Snake 3D
    Play
    Snake 3D
    Played 4945 times

    Can you become the biggest and baddest snake around in this 3D io game? Gobble up all of the pellets while you avoid bigger reptiles and chase smaller ones.

  • Wormate.io
    Play
    Wormate.io
    Played 30701 times

    The worms in this totally weird io game are incredibly hungry. Take control of one of them and stuff him full of lots of yummy food like doughnuts and candy! Can you make your worm bigger and stronger than all of his fellow worms? He’ll need to grow up fast in order to survive while you compete against other players from all over the world.

  • Squadd.Io
    Play
    Squadd.Io
    Played 6708 times

    A legion of relentless commandos is converging on this virtual battlefield. There’s no telling when their war will come to an end but do you feel like joining them? Fight against players from all around the world while you track down awesome weapons and make oil barrels explode in this intense io game.

  • Zombs.io
    Play
    Zombs.io
    Played 19196 times

    Build, Defend and Survive in this addicting io games Zombs.io

  • Wormax.io
    Play
    Wormax.io
    Played 53068 times

    This epic io game is a total feeding frenzy! Take control of a glow worm and see if you can outlive, outlast and out-eat all of your opponents.

  • Y8 Snakes
    Play
    Y8 Snakes
    Played 4060 times

    The classic video game enters a whole new dimension in this thrilling io version. Challenge players all across the world while you fight to make your snake as big and powerful as possible. There’s just one thing: if you crash into another snake, you’ll have to start all over again from scratch.

  • Superhex.Io
    Play
    Superhex.Io
    Played 52383 times

    Can you assemble your cells and create a powerful hexagonal base in this challenging io game? See if you can protect your cells from your enemies and conquer as much territory as possible.

  • Narwhale.io
    Play
    Narwhale.io
    Played 20684 times

    How long will you survive all of the mayhem that you’ll find in this chaotic io game? Take control of this powerful whale and conquer your opponents before they come after you!

  • Agario 3D
    Play
    Agario 3D
    Played 8664 times

    Do you like Agario and 3D multiplayer games? If you answered yes you will love Biome 3D, otherwise known as Agario 3D. Have fun!

  • Snake.is
    Play
    Snake.is
    Played 15384 times

    Make that glow-snake grow with all the glow-balls you can munch! But watch out for the other snakes (controlled by real live players) in this multiplayer online take on the classic Snake game.

  • Piranh.io
    Play
    Piranh.io
    Played 8555 times

    Only the toughest piranhas will survive this feeding frenzy! Hunt down some tasty tourists but watch out! Lots of other piranhas will want to sink their teeth into you in this multiplayer .io game.

  • Eat Me.io
    Play
    Eat Me.io
    Played 9350 times

    It’s eat or get eaten in this cute io game. Will you survive each one of these battles? You can select the awesome aquatic warrior of your choice. Will you fight as a fearsome piranha? Or maybe a sea turtle that can hurl bombs at anyone who tries to bite him? Choose but choose wisely!

  • Starve.io
    Play
    Starve.io
    Played 8357 times

    Prepare yourself for a fight for survival in this thrilling io game. You’ll be up against players from around the world. You’ll all be competing for food and other limited resources. How long will you last?

  • Bonk.io
    Play
    Bonk.io
    Played 2497 times

    Tons of levels and challenges are waiting for you in this unique and thrilling io game. Bash, bounce and bonk your way to victory while you compete against players from all across the planet.

  • Splix.io
    Play
    Splix.io
    Played 15448 times

    Imagine if Snake went social... Now you don't have to! Take over the board one block at a time while avoiding attacks from other live players. Can you claim the whole grid for your color before someone else does?

  • Tanx.io
    Play
    Tanx.io
    Played 6880 times

    Drive one of these heavy tanks and fight other players online on this real time multiplayer tank game!

  • Bloble.io
    Play
    Bloble.io
    Played 9530 times

    Defend your headquarters while you gather your forces and set out to conquer your enemies. Can you dominate the battlefield in this challenging io game? It’s time to find out!

  • Aqwar.io
    Play
    Aqwar.io
    Played 2029 times

    It’s eat or get eaten in this crazy io game. Can you help your fish become the biggest and baddest one in this sea while you compete against players from around the world?

  • Snowfight.io
    Play
    Snowfight.io
    Played 8070 times

    You’ll need some cool moves in order to outlast your opponents in this crazy io game. Fling snowballs as fast as you can while you avoid their attacks. Be sure to watch out for all those angry grizzly bears too!

  • Blash.io
    Play
    Blash.io
    Played 11537 times

    Take control of one of these cute creatures before you dive into battle. They’re fighting each other to the death in this wild io game. How long will you last?

  • Barbs.io
    Play
    Barbs.io
    Played 3361 times

    Can you construct an awesome spinner while you compete against players from all over the world? Fight to out-spin and outlast your opponents in this epic io game.

  • Vertix Online
    Play
    Vertix Online
    Played 1461 times

    Time to load your gun and get ready to blast away at your friends in this awesome online shooter, Vertix Online! Capture areas in order to gain points and win the game!

  • Zombiecraft.io
    Play
    Zombiecraft.io
    Played 13220 times

    You can fight zombies while playing as a doctor, a farmer, a salaryman or another crazy character in this 3D io game. Eliminate the undead in the single player mode or battle alongside players from around the world.

  • Krew.io
    Play
    Krew.io
    Played 9386 times

    ARRRRRRR, MATEY! Climb aboard this tiny raft and see if ye can turn it into a mighty warship! Can ye conquer the high seas and send your online enemies to Davy Jones’ Locker in this io game? Give them no quarter and remember, dead men tell no tales!

  • Oceanar.io
    Play
    Oceanar.io
    Played 1999 times

    Can you become a truly fearsome fishy? Find out if you can conquer the ocean while you avoid dangerous jellyfish in this epic io game. Gobble up tons of food while you build a school of fish that will totally intimidate your opponents.

  • Blockor.io
    Play
    Blockor.io
    Played 6179 times

    Can you become the biggest and baddest block while you compete against players from all around the world? It’s time to find out in this intense io game. Collect power-ups that will give your block some vital boosts.

  • Terr.io
    Play
    Terr.io
    Played 3784 times

    Slice off a chunk of space for yourself and defend it at all costs in this totally weird io game. Can you defend your territory from the other players?

.io Games: Casual Multiplayer Fun Online

It's every player for themselves against the masses in these quick and fun MMO io games (sometimes written as ".io games"). Really just the top-level domain for the British Indian Ocean Territory (like .com is for the US), .io has become associated with some of the best browser-based multiplayer games on the web. The graphics are charmingly simple – which means they're not only retro but also great for browser loading times – as is the deeply addictive gameplay. 

 

Playing io games online means facing faceless foes from around the world in classic games like Snake.is – here with a Tron-like dark-and-neon twist and an endless sea of other live snakes to get in the way of you carving out your own piece of the game board – or completely new, like Dogar.io, where you need to eat to grow and grow to stay alive in this world where there's always a bigger foe ready to eat you instead (and, as this is a Dodge game, expect the full list of top internet memes to make an appearance). Just check out the io games list and see which games tickle your fancy.

 

The basic Snake premise gets more than a dozen different twists when you trap and dodge other players in a neon world in Lazer Drive, for example. Or go for something completely different, like medieval-themed survival game Wilds.io, where you can customize your own character then try to outlive all the rampaging monsters. Whichever way you play, io games offer endless nostalgia to adults who remember gaming on their calculators while offering the younger generation a new social pastime.