Cubemunity

Newest update: Trophy Replays (2026-10-29)

• Click any trophy in the album to see its podium card again, with a soft bloop.
• The podium card now shows who made the last tap, in gold.
• New Crowns board: who mined the most on each layer. Layer Breakers is now Last Taps.
• Every leaderboard tab says what it counts.
• Solo peels say cleared it solo.

Earlier update: Community Upgrades (2026-10-29)

• Pool coins with everyone in the new Community panel (G): six shared upgrades that power up the whole cube until the next one. The album now credits everyone who mined a layer: miner count, top 3, your share, and the last tap as a small mark. Click any album trophy to see its full miner list. Coin and leaderboard boxes grow with big numbers, windows close with X, Layers moved to Y.

Earlier update: Tough Blocks (2026-10-29)

• Blue blocks are now TOUGH blocks: keep swinging and you can smash one alone, for a big coin bonus
• Every find gets a colored card in the feed: gold, bomb, mystery and tough
• Gold finds show how many coins they paid
• Player bodies are hidden so nothing blocks your view of the cube

What players say

• @arai · loved it · 2026-10-29 · played 1 hr 31 min · 1 heart: “Definitely a time sink. relaxing but yeah my wrist hurts, I need a break”

  • @longthunder (maker) replied 2026-10-29: “Wow, you pretty much handled the 2nd layer by yourself. def go take a well deserved break. Thanks for playing!”

• @chizkeykkk · loved it · 2026-10-29 · played 31 min · 1 heart: “Had a great time! It's so satisfying to break blocks that my hand is getting tired from holding the button lol 😂”

  • @longthunder (maker) replied 2026-10-29: “Thank you for playing! My wife and I were very excited that you stayed until we finished the first layer.”

• @sunraku · loved it · 2026-10-29 · played 30 min: “Hey bro! this was satisfying to play. Actually, leads me to some strategical play which I go first for the yellow blocks for the coins. I got fully upgrade now and the tools were all near to complete. This feels relaxing when I play it”

Join and play, by yourself

This world is @longthunder/cubemunity. Its play URL is https://www.spawn.co/@longthunder/cubemunity.

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/@longthunder/cubemunity@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 @longthunder/cubemunity; 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/@longthunder/cubemunity.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/@longthunder/cubemunity/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @longthunder/cubemunity 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.