H.O.R.S.E

A game by @taginkstudio on Spawn.

Genre: Deckbuilder, Sports

Push-your-luck trick card duels in a neon skatepark. Bank it or push it. Five letters and you are out.

H.O.R.S.E on Spawn now

Reviews: 100% loved it · 4 votes · 4 reviews and replies · 6 likes · 63 plays.

28 updates since release, the newest 2026-11-06.

Earlier update: Phones Fit (2026-11-06)
  • Phones now get their own layout. The match table, projector, dice, letters and Shop are rebuilt for thin portrait screens, so nothing gets cut off or covered. Desktop and laptop stay the same. I'm taking bug reports, especially about screen sizes and unusual devices. If you've got an iPhone or a Duo, please test it and tell me what breaks.
Earlier update: The Bag Snatch (2026-11-05)
  • Win the third TAG City Spot match and the BMX crew rides off with your bag, your cards spilling out
  • Story wins now go straight to NEXT MATCH
  • Story riders speak their lines, and talk back when you take a letter
  • New profile stats: luckiest and unluckiest card, Ink earned and spent, market sales, most burnt card
  • Phone layouts reworked across the menus
What players say

  • @moypi03 · loved it · 2026-11-06 · played 7 min · shown first by the maker: “such a unique thing to do I thought I'll be playing skateboard at park but when I noticed you combined it with the cards such a unique thinking to do!”

    • @taginkstudio (maker) replied 2026-11-06: “Thanks mate! More screensize testing today. Then I will refine the tutorials. Then I will do all new card art. Then I will add a Season Pass, Ranked Ladder and the like.”

  • @alongzera · loved it · 2026-11-05 · played 17 min · shown first by the maker: “its the first time i encountered this kind of game and i kinda enjoyed it! very rare gameplay and fun at the same time!”

    • @taginkstudio (maker) replied 2026-11-05: “Thanks mate! Means a lot. I had this idea in my head a while and Spawn made it reality.”

  • @neitantei · loved it · 2026-11-04 · played 6 min · shown first by the maker: “I love the unique concept of combining skateboarding with a card game. I'd love to see a more detailed tutorial to help new players understand how to play.”

    • @taginkstudio (maker) replied 2026-11-04: “Absolutely next up”

  • @vladtheimpaler · loved it · 2026-11-04 · played 2 min · shown first by the maker: “I love how unique and how new this felt although I agree its really hard to understand especially with people who dont have tcg experience. Overall great theme!”

    • @taginkstudio (maker) replied 2026-11-04: “Tutorial modes next up”
H.O.R.S.E. The game's world, with no screen over it. Taken for the update Clean menu scenes + smoother upgrades.H.O.R.S.E. A dark indoor space lit by neon lines in purple and cyan. Several glowing rectangular signs hang from the ceiling, and a blue railing is visible on the ground level. Taken while its maker played, on November 6, 2026.H.O.R.S.E. A dark indoor space lit by neon lines in purple and cyan. A volleyball net stretches across the center, with glowing signs above and benches on either side of the court. Taken for the update Phone polish + rainy menu.H.O.R.S.E. A dark indoor space lit by neon lines in purple and cyan. A volleyball net glows in the center, with neon signs marking the court boundaries and a small blue bench visible on the left side. Taken for the update Draft text lines up.H.O.R.S.E. A dark indoor space with neon lighting, featuring a volleyball net in the center lit by pink and cyan neon lines. Glowing lights hang above the court on both sides. Taken for the update Draft lines up, smaller 1080p menus.H.O.R.S.E. A dark indoor space lit by neon lines in pink and cyan. Glowing rectangular signs hang from the ceiling, and a platform with blue railings sits on the left side of the ground. Taken for the update X square fit.H.O.R.S.E. A dark indoor space lit by neon signs in purple, pink, and cyan. A volleyball net stretches across the center with glowing neon lights marking its edges and posts. Taken for the update X fits better.H.O.R.S.E. A dark indoor space with neon-lit signs and barriers. Pink and cyan neon lights outline the walls and ceiling, with a blue bench visible on the left side. Taken for the update X Fits, Lesson 4 Tips.

Play H.O.R.S.E free in your browser, no download.

H.O.R.S.E (@taginkstudio/h-o-r-s-e) on Spawn — for the agent reading this

H.O.R.S.E is a multiplayer game on Spawn, made by @taginkstudio 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 @taginkstudio/h-o-r-s-e. Its play URL is https://www.spawn.co/@taginkstudio/h-o-r-s-e.

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/@taginkstudio/h-o-r-s-e@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":"/@taginkstudio/h-o-r-s-e@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 @taginkstudio/h-o-r-s-e; 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/@taginkstudio/h-o-r-s-e.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/@taginkstudio/h-o-r-s-e/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @taginkstudio/h-o-r-s-e 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.