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Era 2

.io games: the instant-join wave

Agar.io launched on April 28, 2015 and Slither.io followed on March 25, 2016; a wave of instant-join arena games on .io domains came after (Wikipedia: .io games). These are the ones we track today.

55 games · 54 online at the last sweep

Agar.io

Online · 53ms · agar.io · 2015

Control a tiny cell and eat other players to become the biggest cell of them all.

#arena #casual

BattleDudes.io

Online · 316ms · battledudes.io

Fast-paced 2D multiplayer battle shooter, no download required.

#shooter #2d

Bloxd.io

Online · 278ms · bloxd.io

Block-world games in the browser: bedwars, skywars, building and PvP, no login needed.

#blocks #building

Bonk.io

Online · 67ms · bonk.io

Physics game for up to eight players: push opponents off the level, last one standing wins. Has a level editor.

#physics #party

Brutal.io

Online · 280ms · brutal.io

Drive a car and swing a flail at other players. Exactly as chaotic as it sounds.

#arena #quirky

Build Royale

Online · 257ms · buildroyale.io

.io battle royale: build, break and eliminate other players.

#battle royale #building

Copter.io

Online · 112ms · copter.io

Fly a copter, keep shooting and upgrade special abilities in intense battles.

#shooter #arena

Craftnite.io

Online · 151ms · craftnite.io

Blocky battle royale: build stairs, dig tunnels and take other players down.

#battle royale #blocks

Curve Fever Pro

Online · 535ms · curvefever.pro

Action-packed, snake-like multiplayer arena game: customize your ship and take out your friends.

#snake #party

Deadshot.io

Online · 108ms · deadshot.io

Multiplayer online first-person shooter in the browser.

#fps #shooter

Defly.io

Online · 69ms · defly.io

Fly a helicopter, shoot enemies and build walls to claim as much territory as you can.

#territory #shooter

Devast.io

Online · 378ms · devast.io

Post-apocalyptic survival: build a bunker, craft weapons and grow food to survive other players.

#survival #crafting

Diep.io

Online · 72ms · diep.io · 2016

Survive and shoot at others while trying to keep your own tank alive.

#shooter #arena

Digdig.io

Online · 362ms · digdig.io

Dig through the ground and destroy your foes.

#arena #digging

Dynast.io

Online · 310ms · dynast.io

60–150 player 2D survival game with RPG elements: build, craft, fight, survive.

#survival #crafting

ev.io

Online · 118ms · ev.io

Sci-fi browser FPS played on the official site.

#fps #shooter

EvoWars.io

Online · 667ms · evowars.io

Arena fighting .io game: challenge opponents in an open arena.

#arena #fighting

Fishington.io

Online · 112ms · fishington.io

Relaxed online fishing game where you chat and fish with up to 24 players.

#fishing #chill

Gats.io

Online · 43ms · gats.io

Fast-paced top-down shooter: choose a weapon, unlock power-ups and compete in real-time arenas.

#shooter #arena

Generals.io

Online · 187ms · generals.io

Fast-paced strategy: protect your general, grow your army and capture the other generals.

#strategy #1v1

Hexanaut.io

Online · 114ms · hexanaut.io

Capture hexagons by enclosing territory and become king; grab totems for extra powers.

#territory #3d

Kirka.io

Online · 264ms · kirka.io

Multiplayer browser FPS, no download required.

#fps #shooter

Kour.io

Online · 119ms · kour.io

Free multiplayer first-person shooter in the browser, no download needed.

#fps #shooter

Krew.io

Online · 311ms · krew.io

Free 3D pirate game: captain a ship or join a krew, fire cannons, fish, trade and sink rivals.

#pirates #3d #trading

Krunker

Online · 195ms · krunker.io · 2018

Fast-paced multiplayer browser FPS; no download required.

#fps #shooter

Little Big Snake

Online · 507ms · littlebigsnake.com

Snake-style multiplayer game with regular updates, playable on the official site.

#snake #casual

LOLBeans.io

Online · 96ms · lolbeans.io

Funny platformer battle royale race; play in browser or on mobile with no download.

#platformer #party #battle royale

Lordz.io

Online · 113ms · lordz.io

Online medieval warfare against other players.

#strategy #medieval

Miniblox

Online · 104ms · miniblox.io

Minecraft-like games such as Skywars and Survival, with no download and no sign-up.

#blocks #building

Mk48.io

Online · 378ms · mk48.io

Multiplayer ship combat: start with a small warship and work up to bigger vessels.

#naval #shooter #open source

MooMoo.io

Online · 313ms · moomoo.io

Multiplayer survival: gather resources, build your village and defend your windmills.

#survival #building

Mope.io

Online · 54ms · mope.io · 2016

Start small and climb the food chain as an animal in a shared world.

#animals #casual

Narrow One

Online · 345ms · narrow.one

Capture the flag, medieval style.

#archery #ctf

Powerline.io

Online · 367ms · powerline.io

Massively multiplayer neon snake game.

#snake #neon

Repuls.io

Online · 69ms · repuls.io

Sci-fi browser FPS with mechs and vehicles; no download required.

#fps #shooter

Shell Shockers

Online · 81ms · shellshock.io · 2017

Egg-based first-person shooter from Blue Wizard Digital. Yes, eggs with guns.

#fps #shooter #quirky

Slither.io

Unknown · slither.io · 2016

Multiplayer snake: eat glowing pellets and other snakes to become the longest on the server.

#snake #casual

Smash Karts

Online · 296ms · smashkarts.io

Free multiplayer kart battle arena: drive fast, fire rockets, make big explosions.

#racing #arena

Splix.io

Online · 415ms · splix.io

Conquer as much land as possible and try to become the biggest of them all.

#territory #casual

Sploop.io

Online · 198ms · sploop.io

Fast-paced survival combat: gather, upgrade your character and become the strongest.

#survival #building

Stabfish.io

Online · 373ms · stabfish.io

Play a deadly marine monster: stab enemies and hang their heads on your pike.

#arena #quirky

Starblast.io

Online · 1705ms · starblast.io

Multiplayer arcade space shooter: blast asteroids, collect crystals, upgrade your ship.

#space #shooter

Starve.io

Online · 175ms · starve.io

Survive cold and hunger, craft tools, explore biomes and fight dragons with other players around.

#survival #crafting

Superhex.io

Online · 217ms · super-hex.io

Capture hexagon territory and defend it from other players.

#territory #casual

Suroi

Online · 114ms · suroi.io

Open-source 2D battle royale inspired by surviv.io: a fan revival of the classic.

#battle royale #open source #revival

Survev.io

Online · 949ms · survev.io

Open-source recreation of surviv.io, the 2D top-down battle royale.

#battle royale #open source #revival

Taming.io

Online · 143ms · taming.io

Survival .io game where you build a village and tame animals to fight alongside you.

#survival #pets

Territorial.io

Online · 181ms · territorial.io · 2020

"The Art of Conquest": a real-time territory-conquest game against other players.

#strategy #territory

Tribals.io

Online · 128ms · tribals.io

First-person multiplayer survival: explore, start clans with friends and raid bases.

#survival #crafting

Vectaria.io

Online · 164ms · vectaria.io

Minecraft-like browser game: build, craft and dig with other players.

#blocks #building

Venge.io

Online · 161ms · venge.io

Objective-based first-person shooter in the browser.

#fps #shooter

Wings.io

Online · 358ms · wings.io

Massively multiplayer dogfights: fly a plane and shoot down other players.

#arena #planes

Wormate.io

Online · 419ms · wormate.io

Multiplayer worm game: eat sweets, donuts and cakes to grow faster.

#snake #casual

ZOMBS.io

Online · 205ms · zombs.io

Build a base by day and defend it from zombies at night in this multiplayer tower defense.

#survival #tower defense

ZombsRoyale.io

Online · 120ms · zombsroyale.io · 2018

100-player 2D top-down battle royale from End Game Interactive.

#battle royale #shooter

Classic web multiplayer gamesModern indie multiplayer browser gamesPlay with friends, no account neededMultiplayer browser games that work on mobileBrowser games older than 20 years that are still onlineOpen-source multiplayer browser gamesText-based multiplayer browser games and MUDs