All IO Games
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Aquar.io
Lead an underwater swarm of creatures
4.0138K2.1K1 -
Venge.io
Sleek 3D multiplayer shooter
4.1137K1.5K -
Krunker
Fast-paced 3D browser shooter
4.1198K3.6K -
Battlepoint.io
Top-down 2D urban shooter
3.877K533 -
Stein World
Browser MMORPG with quests and dungeons
3.886K1.1K -
Oceanar.io
Underwater agar.io: eat fish, grow giant
3.7217K3.7K1 -
World of Pixels
Infinite shared pixel canvas
3.9102K1.4K -
Sworm.io
Snake game with splitting swarms
3.9121K1.8K -
YORG.io 3
Tower defense + base building vs zombies
—1.2K4 -
Letters in Space
Draw platforms to fly
—1.1K2 -
Senpa.io
Agar-style cell eater
—1.3K1 -
ORBz.io
Orbital arena combat
—1.4K1 -
Hex Bois
Hex empire combat
—1.3K5 -
Hole.io
Hole eats the city
—1.3K1 -
Mazmorra.io
Online dungeon crawler
—1.3K0 -
Trappersquares.io
Trap placement strategy
—8450 -
Shell Shockers
Shell Shockers egg FPS
—1K1 -
Strike Tactics
HTML5 multiplayer RTS
—1.4K0 -
Stug
Ricochet tank battles
—2K1 -
Snowball.io
Snowball brawl arena
—1.5K0 -
Subsnake
Pixel-art dig-and-grow snake
—1.1K2 -
Suprem.IO
Battle arena platformer
—1.5K0 -
Suroi
Open-source 2D battle royale
3.21.6K6 -
survev.io
Surviv.io revived
—1.4K4 -
Swordbattle.io
Sword fighting arena
3.41.6K6 -
Triset.io
Fast territory-capture puzzle
—7910 -
Voxorp
Space mining & combat
—1.1K1 -
Warbrokers.io
Free multiplayer FPS
—1.3K1 -
WizardWars.online
Tactical wizard duels
—1.1K0 -
WorldGuessr
Free Geoguessr alternative
—9692 -
Wormax2.io
Wormax sequel with polished combat
—9733 -
Wrestle Bros
Online pro wrestling brawl
—1.5K2 -
Neuronball
Robot sport team manager
—1.2K0 -
Koxo.io
Chain-and-ball arena combat
—8181 -
Kart Bros!
Simple kart racing fun
—1.2K4 -
Little Big Snake
Snake.io, polished & updated
—1.2K0 -
LOLShot.io
Aerial rocket-jump FPS
—1K1 -
Lordz2.io
Medieval warfare RTS .io
—1.3K2 -
Mana Blade
3D browser MMORPG
—1.3K3 -
SquadBlast
Side-scrolling team FPS
—8481 -
Might and Monsters
Co-op monster hunts
—9480 -
Mr. Mine
Dig deep, idle rich
—1.3K0 -
Obumo Games
Obumo's game collection
—1.2K1 -
Paper Racer
Stickman moto racing
—8521 -
CrossBird
Mini crossword multiplayer
—7730 -
PopSafari
Bubble-pop safari shooter
—8280 -
Raccoon Retail
Raccoon shop chaos
—1.1K0 -
realmz.io
Dominate the realm
—1.3K2 -
ShipCraft.io
Build ships, conquer space
—1.2K1 -
Smash Karts
Kart battle arena
—1.2K2 -
Soccer Bros!
Browser party soccer
—1.1K4 -
Anguis.io
Multiplayer snake arena
—1.1K2 -
AstroRace.io
Spaceship drift racing
—1.3K1 -
Baseball Bros!
Browser multiplayer baseball
2.81.1K5 -
BattleTabs
Bite-size strategy battles
—1.1K0 -
BigHole
Eat the city as a hole
—1.8K3 -
BitPlanets
Conquer the galaxy in RTS
—1.3K0 -
Bunk. Town
Virus-survival IO arena
—1.3K0 -
Chess Arena
Real-time fantasy chess
—1.7K0 -
Clanker.io
Fast-paced mech shooter
—1.1K2 -
The Free Idle Clicker
Idle clicker RPG
—1.1K0 -
CrushTime.io
Crush or be crushed arena
—1.3K0 -
CubeShot
Voxel 3D FPS
—1.2K4 -
DicePals
Roll for rare pets
—8841 -
eParkour
First-person parkour challenge
3.892317 -
FactionRift.io
Faction territory conquest
3.11.3K5 -
Ferals.io
Evolve from bug to dragon
—1.2K0 -
FindCat.io
Find the hidden cat
—8220 -
Football Bros!
Browser multiplayer football
—8601 -
Footix.io
Arcade browser soccer
—1.1K0 -
gigga.io beta
Fan-made diep.io sequel
—1.4K3 -
HexTank.io
PvP tank arena on hex
—1.1K1 -
Impostor.io
Among Us free-for-all
3.11.4K8 -
Jamir.io
Sci-fi browser FPS
—8450 -
2v2.io
Fortnite-style 2v2 builder BR
3.11.8K5 -
Agar3D
Classic Agar.io, now in 3D
—1.1K0 -
AntWar.io
Ant colony wars online
—1K3 -
Basket Bros
1v1 browser basketball brawl
—8090 -
Battlegrounds2D.IO
2D PUBG in your browser
—1.3K2 -
BattleHex.io
Real-time hex strategy .io
—8130 -
Brawlball
Party soccer with friends
—1.3K1 -
BrutalMania.io
Bloody arena brawler
—1.2K1 -
Cavegame.io
2D Minecraft survival online
—1.4K0 -
Chemz.io
Chemtrails multiplayer chaos
—5600
What is an IO game?
IO game is a special kind of online game. First of all — IO game is a game which requires nothing to play but modern web browser and Internet connection. Second — IO game is free-to-play, massively multiplayer online game. Somebody in the Internet once described IO game as "A game that easy to understand yet hard to master". This is general yet very good description of the cool IO game. You can play it 5 minutes or you can play it 5 hours — in both cases you'll get a lot of fun. That's what make IO games really awesome!
There are different types of IO games. In fact you can find a game of any genre among all of IO games. It's not just simple action games like famous Agar.io or Slither.io. There are platformers, 2D shooters or racing. You can find even RPG IO games or real-time strategies. Today almost all popular game types can be found among IO games!