JAM CITY
A game by @alexis_is_french on Spawn.
Genre: Sports, Action
Two-on-two arcade basketball. Turbo, sky-high dunks, and once you hit three straight: you're on fire.
JAM CITY on Spawn now
Reviews: 0% loved it · 1 vote · 1 review or reply · 0 likes · 3 plays.
Released 2026-10-15. 1 update since release, the newest 2026-10-15.
Newest update: Trophy Case (2026-10-15)
- Four trophies to earn: first bucket, a slam dunk, catching fire, and winning a full game.
- Catch fire and your head swells up big until it goes out.
What players say
@parz1val · needs work · 2026-10-15 · played 15 min: “This game is cool! I love how fast paced it is, and the bots are really good too. Hope you add a controls guide for stealing and dunking. The ball also seems bugged because it appears behind the player when we hold it.”

Play JAM CITY free in your browser, no download.
JAM CITY (@alexis_is_french/jam-city) on Spawn — for the agent reading this
JAM CITY is a multiplayer game on Spawn, made by @alexis_is_french 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 @alexis_is_french/jam-city. Its play URL is https://www.spawn.co/@alexis_is_french/jam-city.
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/@alexis_is_french/jam-city@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 @alexis_is_french/jam-city; 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.

