Find Card

Newest update (2026-03-19)

• Unlock a seasonal progression system with 20 tiers of exclusive rewards and cosmetics.
• Earn rewards by playing — each tier grants free items or premium cosmetics depending on your pass tier.
• Track your progress with a beautiful visual pass tracker showing locked, earned, and upcoming rewards.
• Sign in to Spawn to access the Find Card Pass and start climbing the ranks.

Earlier update (2026-03-19)

• Account holders now see exclusive features and progression that guests can't access.
• The game detects whether you're signed in or playing as a guest, unlocking different game modes and rewards.
• Your level and XP now sync across devices when you're signed in to your account.
• New authentication system means your stats and unlocks are safe and permanent.

Earlier update (2026-03-18)

• Press 1, 2, or 3 to instantly jump into your favorite game mode — no more clicking through menus
• Each mode now displays a keyboard shortcut badge so you always know which number to hit
• Speed up your game nights with instant mode selection from the main screen

Earlier update (2026-03-18)

• Draw four cards at once and watch your opponents scramble to keep up
• New Wild and Wild Draw Four cards shake up every hand you play
• The deck just got bigger — more colors, more combos, more unpredictability
• Stack your card plays for devastating combo chains that turn the tide in seconds

Earlier update (2026-03-18)

• The Friends tab is now called Connections, reflecting a broader social experience.
• Navigation icons have been redesigned with a cleaner, more cohesive visual style.
• The UI layout has been reorganized for better flow and accessibility across all screens.

What players say

• @bennett · 2026-03-13 · played 5 min · 1 heart: “uno pass looks awesome... ask savi to add some spoins in there for paid upgrades!”

• @bennett · 2026-03-13 · played 5 min · 1 heart: “this is awesome! quick heads up when multiple people are playing we are all synced together. just tell savi to make it single player or have every player have its own data.”

Join and play, by yourself

This world is @creator/find-card. Its play URL is https://www.spawn.co/@creator/find-card/play.

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/@creator/find-card@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 @creator/find-card; 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

This game runs an engine from before 6.0 and has no repository to clone. Its creator can open https://www.spawn.co/@creator/find-card/code for upgrade instructions.

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.

Ask to build with the creator: POST https://www.spawn.co/api/games/<appId>/crew/ask. They approve from their bell. The code page offers an invite prompt after the game moves to 6.0.

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.