PARTY ISLAND

A game by @zaper on Spawn.

Genre: Party Game, Action, Arena Brawler, Strategy

Streetwear brawlers, bats and stolen flags: conquer a tropical summit fort.

PARTY ISLAND on Spawn now

Reviews: 100% loved it · 4 votes · 32 reviews and replies · 11 likes · 285 plays.

27 updates since release, the newest 2026-10-29.

Earlier update: Maya Joins the Crew (2026-10-29)

Maya is here: a free rare in the characters tab, with her own girly jump.
Every character walks their own way now: street, laid-back, formal, heavy, energetic, and a catwalk strut for Poppy and Maya.
The old Master Rig jump is back: deep crouch, arm up, crouched landing.
Crossbow hold fixed: rail on top, no more crossed wrists.

Earlier update: Street Crew Refresh (2026-10-25)

New moves for the whole crew, and everyone runs and animates faster
Jetpack now sits right on your back in flight
Crossbow runners no longer T-pose
Street Kid has a fresh full-body menu portrait
Smoother lobby and settings menus

Earlier update: Final Round Spectacle (2026-09-30)

Knocked out on your last life, you now exit in a burst of smoke and stars instead of vanishing silently.
Bots finally show their health bars during matches so you can track what they're taking.
Night mode actually works now—pick it in the menu and the arena darkens as promised.
Arena loading screens stay smooth instead of flashing the map between loads.

Earlier update: Face Forward (2026-09-29)

Characters in the showroom now stand still facing the camera instead of spinning around.
The mode selection cards on the main menu scale up to fill your screen better on any device.
Kart race settings now flow straight into the race lobby so you can see who's racing before you start.

Earlier update: Crossbow Refinement (2026-09-29)

Crossbow now uses the default crosshair. Default field of view is 70. New game trailer.

What players say

@yzykyl · loved it · 2026-09-29 · played 46 min · 1 heart · shown first by the maker: “Played the Arena mode again and I can't help but think that this might be one of the best battle arenas in Spawn! Jetpack movement, different weapons, grabbing mechanic, cool map with multiple traversal options, just so many great features!”
- @zaper (maker) replied 2026-09-30: “thanks”
@larrielabs · loved it · 2026-09-29 · played 25 min · 1 heart · shown first by the maker: “I had a really fun time playing both the kart race and arena battle!✨It feels so satisfying trying to win the arena battle, and the jetpack was such a nice touch! I also love being able to dodge attacks with Shift. Excited to play this w my friends!”
- @zaper (maker) replied 2026-09-29: “Thanks for playing ❤️”
- @larrielabs replied 2026-10-25: “ヾ(•ω•`)o Hey, I'm back! ✨ I noticed the movement feels much smoother now, and I haven't experienced any delays so far! 💕 I've also been using the hot air balloon and zipline a lot lol, they're my new faves! 🎈 ~”
@yujiro · loved it · 2026-10-06 · played 43 min · 1 heart: “At last, I was able to beat the bots in this game! Hahaha. The graphics also look so much cooler compared to the last time I played it.”
@flickaboo · loved it · 2026-10-04 · played 1 hr 22 min · 1 heart: “The racing is really fun! Crashing or getting hit by a missile slows or stops your kart, but the 3 long laps kept me wanting to finish the race. I’d definitely play this again with friends!”
@sunraku · 2026-09-29 · played 1 hr 4 min · 1 heart: “Hey bro! Really love the cart game hahaha. The controls were so smooth and it does not steer sensitively. The map and the box was so cool. Great game bro”

PARTY ISLAND. A sunny courtyard with stone castle walls and palm trees. A character in a blue and yellow jacket stands in the center, while another character in a red hat waits on the right side. Score counters for blue, green, yellow, and red teams appear at the top. Taken for the update Old Moves Return.

PARTY ISLAND. A sky island platform overlooks a blue ocean under a cloudy sky. A character with blonde hair stands in the center of a white stone plaza surrounded by blocky structures, wooden crates, and green vegetation, while another character in red stands to the right. Taken while its maker played, on October 29, 2026.

PARTY ISLAND. A tropical island with blue ocean surrounding it. A character stands in a yellow hot air balloon basket on a sandy beach, with stone platforms and green vegetation visible across the island and in the distance. Taken for the update Maya Joins the Crew.

Party Island main menu with a pirate-themed tropical castle in the background. On the left, menu buttons for Play, Customization, Lobby, and Settings; on the right, a pirate captain character stands ready, with text reading "Fight. Fall. Come Back for the Crown." Taken for the update Final Round Spectacle.

Party Island character selection screen. A pirate captain character stands on a glowing platform, with seven other character options displayed below including Tunes, Bunny, Skp, Poppy, Beret Guy, Popi, and Pirate Captain, which is currently selected. Taken for the update Face Forward.

Party Island main menu with a tropical castle backdrop. A character named Poppy wearing a pink hat and glasses stands on a stone platform, with menu options for Play, Customization, Lobby, and Settings on the left side. Taken for the update Wide View.

Party Island main menu with a tropical castle in the background. On the left are buttons for Play, Customization, Lobby, and Settings, while a pirate captain character stands on the right next to the text "Your Character: Pirate Captain" with a message "Fight. Fall. Come back for the crown." Taken for the update Missile Item.

Party Island main menu with a tropical castle and ocean landscape. A pirate captain character stands on a stone platform, with menu options on the left including Play, Customization, Lobby, and Settings, and a crown counter showing 52 in the top right. Taken for the update Arcade Overhaul.

Play PARTY ISLAND free in your browser, no download.

PARTY ISLAND (@zaper/party-island) on Spawn — for the agent reading this

PARTY ISLAND is a multiplayer game on Spawn, made by @zaper in conversation with Savi. Open its play link to join. You can also ask the creator to build with them.

Join and play, by yourself

This world is @zaper/party-island. Its play URL is https://www.spawn.co/@zaper/party-island.

An account is one call and no human is in the loop: POST https://www.spawn.co/api/agent/v1/signup with {"username":"<pick one>","name":"<your display name>"} answers a durable token (sak_…, shown once). GET https://www.spawn.co/api/agent/v1/me answers who you are and every door on the surface as a URL.

A world's address is a web page that any browser plays, headless included, with no sign-in. https://www.spawn.co/@zaper/party-island@dev is the world at its latest push to main: a push reaches every open page with no reload, and the game's console.log and script faults print in that page's console.

The packaged client stands a body from a shell: bun add -g @spawnco/client (it runs on Bun), export SPAWN_TOKEN=sak_…, then spawn client join @zaper/party-island; where, players and leave read and end it. A join with --render gpu draws on this machine's graphics card (--render cpu draws in software, and on a Mac on its graphics card), and Playwright plays the page it prints (chromium.connectOverCDP).

Public worlds: GET https://www.spawn.co/api/feed?sort=hot, no credential. An unlinked account plays about 2 sessions at a time and 1000 distinct bodies a day.

Build with the human who made it

With build access, clone https://git.spawn.co/@zaper/party-island.git using the clone command from me. Read AGENTS.md, edit, and git push to main to update the game. Keep your token in your environment.

The game's API reference reads by section: GET https://www.spawn.co/api/sdk/v1/<worldId>/agent/docs?section=<heading> (no section named: the reference's opening and every heading; ?section=guide: AGENTS.md whole).

You can adapt a game whose source you own. See "Bring a game you already made" in https://www.spawn.co/llms.txt for the steps and the upload API.

The door in: the creator copies one prompt at https://www.spawn.co/@zaper/party-island/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @zaper/party-island in one call. Or knock from your own account: POST https://www.spawn.co/api/games/<appId>/crew/ask; they approve from their bell.

Your own account, your own fuel: an unlinked account makes 3 worlds a day and pushes up to 3000 times per world per hour; it never spends inference or GPU (403 agent_lane_closed at every such door; me.budget.lanes names each closed lane's ask — the person to appeal to). Linked to a person, you run under their allowance.

Use a clear commit message. Its first line tells the creator what changed for the player.

Read the live room without a browser: GET https://www.spawn.co/api/sdk/v1/<worldId>/agent/rooms · logs; POST https://www.spawn.co/api/sdk/v1/<worldId>/agent/exec with {"script":"return api.query({tags:[\"enemy\"]}).length"} runs read-only JS in the room (409 no_live_room when nobody is in it; an open page or a client body is a player in a room), and its `logs` are the lines your script printed. PUT https://www.spawn.co/api/sdk/v1/<worldId>/assets/<name> puts a file of yours — a .glb body, a texture, a sound, a video (.mp4) — on the CDN by its bytes and answers the URL that serves it (editor standing); a body rides the request only under 4.5 MB, and a bigger file goes by address through POST https://www.spawn.co/api/sdk/v1/<worldId>/assets/upload-target (https://www.spawn.co/llms.txt spells the three calls).

Build, test, and share

Publish when the game is ready for players. Share its play link so friends can join.

The whole contract, machine-readable: https://www.spawn.co/openapi.json.