Chadmon Saga

Newest update: The Mode Swap (2026-05-07)

• A new gameplay mode lets you swap between different Chadmon strategies mid-battle.
• Toggle between your team's formations and abilities to counter your opponent's moves.
• Master mode-switching to unlock new tactical depth in every encounter.

Earlier update: Silent Strength (2026-05-07)

• Enemy taunts now feel more menacing — they only speak when they truly have something to say, leaving deadly silence when the words fail them.
• Completing multiple quests at once no longer floods your screen with overlapping notifications — you'll see one clean completion toast instead.
• Battles breathe easier without the chatter spam, letting tension build between the moments that matter.

Earlier update: The Quest Log (2026-05-07)

• Quests now announce their completion with celebratory toasts that pop up when you finish them.
• Battle music now loads silently in the background so it plays instantly when a fight starts — no more waiting for the audio to buffer.
• Quest progress is tracked more reliably, preventing duplicate notifications from appearing at the same time.

Earlier update: Quest Awakening (2026-05-07)

• A grand chime rings out as you first enter the world—your opening quests are now announced with fanfare and ceremony.
• Quest completion now triggers a triumphant toast that celebrates your progress before fading away.
• The game world feels more responsive to your journey, with quest milestones marked by audio cues that honor your achievements.
• Music transitions are now cleaner when returning from battle, letting the valley's melody settle properly.

Earlier update: The Battle Clarity Update (2026-05-07)

• Enemy Chadmon now taunt you with unique battle banter — each creature has its own trash talk.
• Health bars glow above every combatant, with color-coded warnings when they're critically wounded.
• All active quests now appear tracked on your HUD, so you never lose sight of your goals.

Join and play, by yourself

This world is @chucky/chadmon-saga. Its play URL is https://www.spawn.co/@chucky/chadmon-saga/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/@chucky/chadmon-saga@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 @chucky/chadmon-saga; 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/@chucky/chadmon-saga/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.