THE VOW

Newest update: The Spear-Throwers Come Early (2026-07-30)

• The raving mortals now climb the mountain from five seconds in, and the war-priest from twenty-four — and any rung the run has earned is guaranteed a body on the stone instead of left to chance. The raving throws sooner and keeps throwing at closer range.

Earlier update: The Telling Unfolds (2026-07-30)

• A layered narrative now unfolds across the screen—giants loom over mist and cloud, each element moving at its own pace to draw you deeper into the story.
• The ink bleeds across your vision as pages turn, washing over the world in the sepia-toned light of memory and vow.
• Clouds drift and billow as living breath across the painted giants, settling like mist over a landscape of consequence and oath.
• Every frame is now a painting—subject, sky, and weather composited with the precision of watercolor on canvas, the giants reading sharp against the softened world around them.

Earlier update: The Layered Pages (2026-07-30)

• The opening story now unfolds across stacked, translucent pages that shift and overlap as you progress through each chapter.
• Ink washes flow between story panels, creating a living page-turn effect that responds to your pace through the narrative.
• Each slide now carries multiple visual layers that blend together, revealing deeper details the longer you linger on a moment.
• The story's rhythm adapts — pause too long and the pages settle; keep moving and the ink keeps flowing.

Earlier update: The Fresh Ledger (2026-07-30)

• The leaderboards have been reset — your vows are being counted fresh, on a clean slate.
• Submission night has arrived, and with it, a chance to chase your highest scores again from the start.
• All your old records remain in the archive, but the new season begins now.

Earlier update: The Ascent (2026-07-30)

• The mountain's flanks now breathe with weathered stone and living growth, each face carved with its own story of wind and time.
• Death no longer flashes white across your vision — the weight of failure settles in silence.
• Vegetation clings to sheltered hollows and chutes, thinning as the rock rises toward the rim and falls away into mist.
• The terrain speaks in three shades of grey, each one earned: light on the crests where wind scours, wash in the depths where nothing escapes.

Join and play, by yourself

This world is @beach/the-vow. Its play URL is https://www.spawn.co/@beach/the-vow/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/@beach/the-vow@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 @beach/the-vow; 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/@beach/the-vow/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.