Duck KOTH!

What players say

• @makeriffic · 2026-09-20 · played 27 min · 1 heart: “Yo, I can't see what I have to do because of the 1 equipment I have to use blocking the text below. I like hunting ducks, but I got jammed at the king duck and lost it to a bot lol. Fun game!”

  • @littlebomb (maker) replied 2026-09-21: “Thanks for playing and feedback. I will be moving that equipment to the side!! Yeah can't shoot till 0, but you can steal the crown off the bot if you find him hahah”

• @kaya · 2026-09-17 · played 10 min · 1 heart: “sneaky hunters always reap the best rewards :) was always sneaking around ponds and i would always get 3-4 ducks. finding king duck was also very funny cause he was just walking around, and i didnt even notice until the last 10 seconds! lol. i think it would be nice if there was a shooting animation, would make gameplay feel much better! enjoyed your game!”

• @yujiro · 2026-09-17 · played 53 min · 1 heart: “I had a great time with this! The graphics are super impressive, and roaming the map for hunting feels really satisfying. It totally hooked me right from the start—can't wait to jump back in and explore even more!”

  • @littlebomb (maker) replied 2026-09-17: “Im so happy you came back, I did see you there when I was having loading issues, was hoping to get into a crew with you!”

• @alongzera · 2026-09-17 · played 23 min · 1 heart: “enjoyed shooting ducks haha. suggesting to have a bullet tracer when shooting the gun and also and iron sight for better vision shooting.”

  • @littlebomb (maker) replied 2026-09-17: “Thank you so much for playing and feedback! I will be refining this just had to prioritise for the jam, Scope is meant to be crappy so you level it up at the shop, but not in duck hunt phase. Definitely will look into it”

• @sunraku · 2026-09-29 · played 11 min: “I like the game concept haha. Hunting duck in combine to KOTH. The map also is big enough for the hunt. I really like that there are many hiding spots here. Just had fun playing this. Great game.”

Join and play, by yourself

This world is @littlebomb/duck-koth. Its play URL is https://www.spawn.co/@littlebomb/duck-koth.

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/@littlebomb/duck-koth@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 @littlebomb/duck-koth; 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/@littlebomb/duck-koth.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/@littlebomb/duck-koth/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @littlebomb/duck-koth 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 — 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.