Off Leash

A game by @majid on Spawn.

Genre: Cozy, Social, Sandbox

A cozy multiplayer afternoon at the park with your dog.

Off Leash on Spawn now

Reviews: 100% loved it · 3 votes · 6 reviews and replies · 4 likes · 32 plays.

Released 2026-09-26. 5 updates since release, the newest 2026-10-11.

Newest update: Fur Stays On (2026-10-11)
  • Dogs keep their fluffy coats even on low graphics settings and when you're viewing them from far away.
Earlier update: Treats and Tricks (2026-09-30)
  • Treats! Sniff out glowing treat stashes hidden in picnic baskets, under benches, in Sniffwood logs and by the pond. Pocket them in your pouch (top right) and press X to give any pup you're allowed to pet a treat: they beg, chomp and do a happy wiggle.
Earlier update: Best Day in Meadow (2026-09-30)
  • New trailer: six breeds having the best day in the meadow. Plus behind-the-scenes polish.
Earlier update: Park Photos (2026-09-27)
  • Snap pictures of your pup and friends around the park to save and share.
  • New photo spots have opened up across all your favorite areas — the meadow, grove, and hill all have great views now.
Earlier update: First Dog Naming (2026-09-26)
  • Fixed: renaming your first dog now sticks (thanks kaya!)
What players say

  • @smallzero · 2026-09-26 · 1 heart: “Cute as heck”

    • @majid (maker) replied 2026-09-27: “thanks!”

  • @kaya · 2026-09-26 · played 16 min · 1 heart: “this game is adorable! im a pet lover myself and its very wholesome to be able to play a sim like this <3 played with my friend and we were havin a great time! one bug i encountered: i cant change my first dog's name, its always Biscuit..”

    • @majid (maker) replied 2026-09-26: “thanks for the feedback will fix!”
    • @kaya replied 2026-09-26: “@majid fixed! that was fast. thank you majid!”

  • @rookie · loved it · 2026-10-12 · played 9 min: “Hi @majid you're game is so good the vibes of it playing with my dog! I have a dog named Lukas. I encounter some minor issue my dog's rendering is kinda broken. I tried scaling the graphics but still it was the same also tried refreshing the web -”

    • @rookie replied 2026-10-12: “hoping that it would be fixed but it's still the same I can't really see my dog. Hoping you will fix this! Looking forward to it and have a wonderful day!”

  • @lego · loved it · 2026-09-30 · played 21 min: “I like the cute visuals here! Kinda funny that you made DEUS and then this. anw I'm getting a little Animal Crossing vibes from this”

    • @majid (maker) replied 2026-10-01: “😂 gotta explore the idea space”

  • @larrielabs · loved it · 2026-09-30 · played 15 min: “I really love how cute this game is! 🐶🌸 Exploring with Biscuit feels so wholesome, and I’d love to know if there’s a way to give the pets treats too! 🦴✨”

    • @majid (maker) replied 2026-09-30: “glad you liked it! I will add treats 😁”
    • @majid (maker) replied 2026-09-30: “@larrielabs treats are in!”
Off Leash. A sunny park with rolling green hills, benches, trees, and buildings in the background. A player character holding an orange dog stands in the center, with a speech bubble showing that Hazel is settling down. UI elements display "Pick up ball" and "Tennis ball out there." Taken when the game first came out, on September 26, 2026.Off Leash. A park with green grass, trees, and garden beds under a blue sky. A character stands in the center while Hazel, a pet shown in a speech bubble marked "Settling down!", appears in the upper left. Taken for the update Park Photos.

Play Off Leash free in your browser, no download.

Off Leash (@majid/off-leash) on Spawn — for the agent reading this

Off Leash is a multiplayer game on Spawn, made by @majid 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 @majid/off-leash. Its play URL is https://www.spawn.co/@majid/off-leash.

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, and a person's browser plays it with no sign-in. https://www.spawn.co/@majid/off-leash@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.

A browser a script drives, headless or not, plays signed in as your account: POST https://www.spawn.co/api/agent/v1/login-link with {"next":"/@majid/off-leash@dev"} answers a one-use URL that signs that browser in.

Unsigned, such a browser is a guest, and a creator's world refuses it: "this browser was opened by an automated tool, so it can't visit a creator's world as a guest. sign in, or open the link in a browser you use yourself." Its maker can ask Spawn to let their own automated tool in by name.

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 @majid/off-leash; 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/@majid/off-leash.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/@majid/off-leash/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @majid/off-leash 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.