Multiplayer games built with AI

Learn to surf in a browser game

bhop.surf

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Browser surf game in the style of classic surf maps, with a tutorial map made for people who have never surfed before. You hold A or D into a ramp and steer with the mouse, with a run timer, checkpoints and a quick restart, and other players can be on the map at the same time. It runs in the browser with no download. The builder says the game was vibe coded, while the tutorial map was made by hand.

Raid island guardians in a co-op roguelite

dapp.alandys.com

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Co-op roguelite in the browser where players hatch a creature and fight raid-style guardians across floating islands, solo or with up to three online. The builder says he spent 33 days making it with Claude Opus 5.5 and Three.js, with 16 raid bosses, online co-op on a real server and a Steam release planned for November. It runs on PC, mobile and gamepad with no download, and play starts without an account. Built with Claude.

Claude@AlandysGame, Oct 24

6

Steer a hippo raft with up to three friends

toottogether.fun

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Free co-op party game in the browser where up to four hippos share one inflatable raft and can only move it by tooting, so the crew has to agree on a direction. Play solo, couch co-op with keyboard and gamepads, online by sending a link, or race up to 16 players down eight rivers. Try it: send a room link to one friend. Built with Claude Opus 5.5; the builder says it is open source under MIT.

Claude@_pratikpakhale, Oct 23

8

Trade a fictional stock against your friends

tendiesbrawl.com

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Free multiplayer browser party game where friends and bots trade one fictional stock on a live order book in rounds of a few minutes. Briefcases drop power-ups that bend the rules, and news headlines can shift the price. Players are ranked by profit and loss when the clock runs out. Built with Claude.

Claude@Benjythebee, Oct 22

3

Host a timed trivia quiz for your friends

brag-play.onrender.com

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Multiplayer trivia quiz game in the browser: a host creates a quiz room, friends join with a code, and everyone races the clock to the top of the leaderboard. Rounds include pick-the-answer, typed answers, true or false and guess-the-image, with categories such as football, Afrobeats and history, plus a single-player mode. Try it: tap Host, create a game and share the code. The builder says it was built in Codex.

Codex@S_Rufuss, Oct 22

14

Explore sunny low-poly islands with friends

retrodelsol.com

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Multiplayer low-poly island game for the browser and mobile where players walk the coast, ride a postal trike and sail between sunny islands. Players can deliver parcels to earn in-game money, customise their character and switch camera views in a shared online world with a day-night cycle. The builder says it was made with Opus 5.5 and GPT 6 Astra, with 3D assets from Retro Diffusion animated in Blender.

Claude@chongdashu, Oct 21

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Build a steam fleet and destroy enemy fortresses

menufactory43.github.io

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French-language strategy game set in the Belle Époque: mine coal, build a fleet and destroy the enemy base and its walking steam fortresses. It offers skirmish, survival and operations modes on seven maps, three difficulty levels, a daily operation, online duels with a friend, AI-versus-AI matches and replays. The builder made it with Claude Code as a fork of Simon Willison's Battle Drones and shares the code on GitHub.

Claude@Meffysto69, Oct 21

Brawl friends or fight slop zombies together

gangslop.com

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Wobbly browser brawler for up to 8 players, who hurl each other off rooftops and into furnaces or team up against endless waves of slop zombies. Lobbies share a code or invite link, bots can fill the seats, and Brawl and Horde modes rotate through 10 stages, with a tutorial and controls page built in. The builder says it was made with Opus 5.5 and plays best on desktop with a Bluetooth controller.

Claude@brycebjork, Oct 20

2

Race 26 km downhill and swap vehicles mid-run

longwaydown.vercel.app

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Browser downhill race where players wingsuit off a summit and race seven rivals 26 km to the valley, swapping vehicles on the way. It has a solo race, online rooms that friends join with a code, rider and vehicle-paint customization, and best times for the Snow Peak and Green Ridge runs. The builder says it was built with Opus 5.5 and three.js in two days.

Claude@Savage27z, Oct 20

5

Code together live and practice interviews

codeshare.tech

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Real-time coding rooms where friends edit the same file with live cursors and chat, then run Python, JavaScript or TypeScript in the browser. It adds 100 interview problems with instant tests, a Lens visualizer that steps through code line by line, and nine quick multiplayer games such as a code typing race. Built with Claude, with the source shared on GitHub.

Claude@TheByteDax, Oct 20

18

Cause chaos in a multiplayer browser game

play.city.klipzi.com

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Open world browser game set in a low-poly 3D city, where up to 4 players free roam, drive, jump and drift, or play solo as one of two characters. Side modes include Crazy Cab, Paper Run, Ghost Shift and City Hustle, with cloud saves and a phone controller option. It is free to play with no download or account. The builder says it was built with AI, with the first playable version done in 37 minutes.

Fly and fight in 8v8 bird shooter battles

birds-with-guns.vercel.app

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Browser multiplayer shooter where armed birds of the Talon Republic and Corvid Syndicate fight over an overgrown city in 8v8 online matches. Players aim with the mouse, fly, dash, peck and use a special ability, spend Battle Points on reinforcement birds, and can switch between hitscan and bullet drop; the builder says it has 10 playable birds and 6 maps. Built with Claude Opus 5.5 and three.js in under 24 hours, according to the builder.

Claude@mdaman010, Oct 18

Flip a thruster car off a giant ramp

roadster-city-828894090822.europe-west1.run.app

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Free multiplayer stunt game in the browser: flip a thruster car off a giant inverted J-ramp, roll it upright in a cloud of cold gas and land it. Works on phone or desktop, no download or sign-up. Built with Claude Opus 5.5.

Claude@M_Tylicki, Oct 17

2

Ride walls and flip a thruster car

ragingbot.app

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Free browser stunt driving game in a neon night arena: boost from 0 to 60 mph in one second, hover on thrusters and ride the walls. Jump a lineup of cars and trucks along the way. Modes include a stunt park, a checkpoint time attack, a car-soccer mode and a showroom. Try it: hit the hover jets off a ramp and land an air flip. The builder says it took a few prompts with Claude Opus 5.5 and three.js.

Claude@aymericrabot, Oct 17

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Decorate a private block room with friends

crisp-bison-cabin-beam.grok.me

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Private block-built 3D room you share with friends by code: move the furniture, paint pictures and hang them on the walls. The room stays after everyone leaves. Built with Grok.

Grok@Curiousbetsy69, Oct 17

2

Change one letter at a time to beat a friend

fourletterduel.aaronpowell.co.uk

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Two-player social word game in the browser where each turn changes one letter of a four-letter word to build a brand-new word. A roll picks who starts, a friend joins with a four-digit room code, and a stuck player can pass the turn. Levels run from Easy with no timer to Ultra with 3 seconds per turn, and there is nothing to download. Built with Replit.

Replit@AaronPowell131, Oct 14

3

Roll and merge units to defend the keep

lastkeepstanding.com

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Roll-and-merge browser tower defense game: buy random units, merge two of a kind into a higher tier and survive as many rounds as possible. It has Cross, Serpentine and Siege maps, a free single-player mode with a leaderboard, a multiplayer mode for up to 4 players on separate boards and a tutorial. The builder says it was vibe coded.

Build a base and battle in a Detroit RTS

dannyskelley.com

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Real-time strategy browser game set in Detroit in 2037: build a base, train an army and fight for the downtown Reservoirs when they open at six minutes. Play the computer or join an online match, with factions such as Space Corps, Bone Horde, Punks, AI Collective and Future Cops. Try it: build a Supply Depot (Q) and Barracks (E), then press X to attack. The builder says it was vibe coded.

Host Jeopardy and quiz nights on your TV

pardytime.app

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Party game maker for building your own quiz, Jeopardy board or party card deck and hosting it live on a TV while everyone plays from their phone. No app download is needed and it is free to use. Squiz is the site's mascot, whose eyes follow your cursor while he asks visitors for feedback. Built with Cursor.

Cursor@oscklm, Oct 9

Play a free voxel MMORPG in your browser

playnearia.online

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Free browser voxel MMORPG connected to the NEAR blockchain. Players earn the in-game gold token $NRG and can claim it to a NEAR wallet, and the site comes in several languages. The builder says it was vibe-coded with Claude Opus 5.5.

Claude@charl1esp, Oct 9

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