The Summit

Newest update: The Callout Update (2026-09-17)

• Bot climbers now announce their next move before they act — watch what they're planning.
• Action cards float above climbers showing their intention, the roll result, and what they gained or lost.
• Help requests now clear only when someone actually assists, gifts, or trades with you — no more confusion about who answered.
• Bots breathe room into their decisions with better timing, giving you space to read the mountain.

Earlier update: The Crew Update (2026-09-17)

• Save your favorite bot crew and table settings — they'll be waiting when you return to create a match.
• Redesigned match creation UI makes it easier to pick your crew, preview who's climbing with you, and lock in your preferences before you start.

Earlier update: Now with singleplayer! (2026-09-15)

• Climb solo with a bot crew, or bring your friends. Fill empty seats when creating a table, choosing from six distinct playstyles and Mixed, Supportive or Competitive crews. Bots climb with the same dice, gear and cooperation rules as human players.
• Follow each move more easily: bots now think for six seconds before acting, with slower routine responses and quick emergency catches.
• Learn the mountain with Mira's interactive tutorial. Crew selection works on desktop, tablet and phone. Quick Match remains human-only.

Earlier update: The Training Guide (2026-09-15)

• Mira, an AI climbing partner, now guides new climbers through a complete practice expedition from basecamp to summit.
• Learn the mountain's 16 climbing routes, rope systems, supply management, and rescue mechanics at your own pace before joining a real team.
• Seven chapters of structured lessons teach you how to climb, camp, cooperate, and survive weather—with narration, hints, and arranged scenarios to build confidence.
• Your practice table is private and persistent; pause anytime, replay lessons, and graduate to public expeditions whenever you're ready.

What players say

• @yujiro · 2026-09-22 · played 6 min · 1 heart: “The climbing and expedition system looks interesting, especially with mechanics like stamina, fatigue, supplies, belaying, and rescuing teammates. I like that different actions can affect how the team progresses. There’s quite a lot of information on screen, though, so clearer guidance on which action to take next could make the gameplay easier to understand.”

• @kaya · 2026-09-17 · played 10 min · 1 heart: “kinda feel bad for not helping my bot friends, cause i just went for climb every chance i get LMAO. i eventually got my karma tho cause i had bad consecutive rolls :( would be a really funny game to play with friends. might break friendships too, who knows lmao”

• @sunraku · 2026-09-17 · played 49 min · 1 heart: “Hi bro. I tried to play this and were going to play this with my friend but seems like the main menu panel was missing. At his POV the main menu is visible.”

  • @fbp (maker) replied 2026-09-17: “That's weird, maybe incidental. Have you tried reloading?”
  • @sunraku replied 2026-09-17: “Yes many times I tried to reload but still not popping up”
  • @sunraku replied 2026-09-17: “Actually until now, I reenter the game. The main menu was missing.”
  • 1 more reply

• @vladtheimpaler · 2026-09-17 · played 12 min · 1 heart: “I tried to play with my friend, but I can't go to lobby”

  • @fbp (maker) replied 2026-09-17: “Try using quickmatch!”

• @arashi · 2026-09-17 · played 5 min · 1 heart: “i tried to play and fill the bot but not working quickmatch”

  • @fbp (maker) replied 2026-09-17: “Thanks for reporting. Can repro on android so a fix is coming soon.”
  • @fbp (maker) replied 2026-09-17: “Bots have been fixed!”

Join and play, by yourself

This world is @fbp/the-summit. Its play URL is https://www.spawn.co/@fbp/the-summit.

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/@fbp/the-summit@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 @fbp/the-summit; 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/@fbp/the-summit.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/@fbp/the-summit/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @fbp/the-summit 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.