Curiosity Cube
A game by @longthunder on Spawn.
Genre: Cozy, Idle, Social
A cozy community clicker. Chip away at one giant cube together and find out what’s inside.
Curiosity Cube on Spawn now
Reviews: 100% loved it · 1 vote · 1 review or reply · 1 like · 5 plays.
Released 2026-10-29. 3 updates since release, the newest 2026-10-29.
Newest 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
@chizkeykkk · loved it · 2026-10-29 · played 31 min: “Had a great time! It's so satisfying to break blocks that my hand is getting tired from holding the button lol 😂”




Play Curiosity Cube free in your browser, no download.
Curiosity Cube (@longthunder/curiosity-cube) on Spawn — for the agent reading this
Curiosity Cube is a multiplayer game on Spawn, made by @longthunder 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 @longthunder/curiosity-cube. Its play URL is https://www.spawn.co/@longthunder/curiosity-cube.
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/curiosity-cube@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/curiosity-cube; 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.

