PLAYgarden

A game by @brii on Spawn.

Genre: Sandbox, Cozy

A falling-sand toy lit by sun, lava, glow powder and UV: pour, burn and bend rainbows through glass.

PLAYgarden on Spawn now

Reviews: 100% loved it · 3 votes · 3 reviews and replies · 4 likes · 6 plays.

Released 2026-10-31. 4 updates since release, the newest 2026-11-01.

Earlier update: PLAYgarden (2026-11-01)
  • LITTY SANDBOX is now PLAYgarden. New Sand art scene: mixed sand trickles through five pinholes and builds layered mountains, like a real sand frame.
Earlier update: Sun Meadow (2026-11-01)
  • A new garden scene: drop seeds, pour water and watch plants race toward the sun. Draw your own suns, dirt feeds the growth, flowers bloom in strong light, and a rain cloud waters the left hills.
Earlier update: Neon and Prisms (2026-10-31)
  • Lightning cracks down and fuses sand into glass
  • Neon gas glows pink and pools under roofs
  • Molten gold turns to solid gold when it hits water
  • Two new scenes: the Prism hall and the Glow garden
  • Elements sorted into tidy groups
What players say

  • @yzykyl · loved it · 2026-11-01 · played 10 min · 1 heart: “I don't have a creative bone in my body but it is pretty fun experimenting around and seeing interactions between elements. UV lamp description says it makes glow powder blaze so I put glow on it but it seems to have not done anything.”

  • @vladtheimpaler · loved it · 2026-10-31 · played 5 min · 1 heart: “W game man, I remember that I have played something like this years ago and it's fun to experiment with various elements. I specifically love the Lava and water combo for rain”

  • @neitantei · loved it · 2026-10-31 · played 4 min · 1 heart: “It's like painting on a canvas, but instead of paint, you're decorating with minerals. I'm having a lot of fun with it, even though I have no idea what I'm doing half the time. Hahaha”

  • @brii · 2026-11-01 · played 1 hr 34 min: “Thanks for the kind words and trying the game out! I added some plant growth materials, let me know if you explore anything interesting!”

PLAYgarden. A game interface showing the ELEMENTS menu with a grid of colored squares representing different materials like Sand, Stone, Water, Fire, and many others. Below are scene options including Dune cave, Sun meadow, Prism hall, Glow garden, and Sand art. Taken for the update Canvas fit fix.PLAYgarden. Litty Sandbox scene with sand dunes, a dark structure with glowing purple interior, stone walls, green plants, and an orange block. A control panel on the left shows available elements like sand, water, wall, fire, and other materials to draw with. Taken when the game first came out, on October 31, 2026.PLAYgarden. A desert landscape with sandy terrain, rocks, and glowing crystals. Below it, the ELEMENTS menu displays a grid of material options including Sand, Stone, Gold, Water, Ice, Steam, Fire, Lava, Acid, and others, with a separate Scenes section listing environments like Dune cave, Sun meadow, Prism hall, and Glow garden. Taken while its maker played, on November 1, 2026.PLAYgarden. A game interface showing an ELEMENTS menu with a grid of material options like Sand, Stone, Water, Fire, and many others, each represented by colored squares. Below the elements menu, a SCENES section offers level choices including Dune cave, Sun meadow, Prism hall, and Glow garden. Taken for the update Sun Meadow.PLAYgarden. Dune cave scene with sandy terrain, stone structures, and various colored blocks at the bottom. A control panel on the left lists elements like sand, stone, water, and fire available for drawing. Taken for the update Neon and Prisms.

Play PLAYgarden free in your browser, no download.

PLAYgarden (@brii/playgarden) on Spawn — for the agent reading this

PLAYgarden is a multiplayer game on Spawn, made by @brii 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 @brii/playgarden. Its play URL is https://www.spawn.co/@brii/playgarden.

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