Plainsworn Online

Newest update: Bloodhoof Awakening (2026-08-21)

• NPCs now display their names and roles above their heads.
• The village teepees have been rebuilt in the tribal style, with a more authentic appearance.
• Corrupt mist now swirls through the Ghost Woods, thickening the supernatural atmosphere.
• Character Select now shows you the plains at dusk, with a warm campfire and towering horizon.
• Your character sheet now saves automatically every two minutes, even if you're just standing still.

Earlier update: The Hearth Ascends (2026-05-06)

• The character select screen has been rebuilt with a warmer, more intimate atmosphere — a stone platform now glows with firelight and tribal totems instead of the stark void it once was.
• Campfire and embers dance around you as you choose your character, casting dancing shadows and warm golden light across the selection chamber.
• Dust motes drift lazily through the air, adding depth and life to the character creation space.
• Your character's appearance is now more stable — no more mysterious vanishing acts or unexpected scale shifts mid-adventure.

Earlier update (2026-04-06)

• Pointer lock is now enabled by default during character creation, keeping your camera control locked and responsive
• Death animations now play for a few seconds before the corpse disappears, letting you witness the final moment
• Terrain blending has been smoothed out across mesas and slopes — colors transition naturally instead of snapping
• Combat spells now properly clear their visual effects and sounds when interrupted or recast
• A new fantasy-style reticle appears when you lock onto a target, with ornamental flourishes that activate on engagement

Earlier update (2026-03-17)

• A legendary trial has emerged in the plains — prove your oath by facing challenges that test your sworn convictions.
• New oath-bound encounters reward you for staying true to your pledges, with exclusive gear and titles for the faithful.
• The plains themselves respond to your oaths, revealing hidden paths and sanctuaries only the devoted can access.
• Face oath-breakers and corrupted sworn in new confrontations that reshape the political landscape of Plainsworn.

Earlier update (2026-03-17)

• Enter the Shadow Realm — a corrupted mirror of the Plains where fallen warriors are reborn by the Spirit Healer.
• Choose your class and name before stepping into the world with a full character creation screen.
• A dark portal now connects the camp to the realm of spirits, guarded by ancient totems and eerie ghost-fire.
• Resurrect with no cost if you recover your belongings, or face Resurrection Sickness if you return to the Spirit Healer empty-handed.
• New WoW-style camera and controls — hold middle mouse to orbit, scroll to zoom, and hold both mouse buttons to auto-run forward.

What players say

• @goblinjo · 2026-03-13 · played 28 min · 1 heart: “Camp Taraujo... home...”

• @rookie · 2026-08-28 · played 30 min: “This game has potential! Can't wait for the updates and fixes of this game!”

Join and play, by yourself

This world is @izkimar/plainsworn-online. Its play URL is https://www.spawn.co/@izkimar/plainsworn-online/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/@izkimar/plainsworn-online@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 @izkimar/plainsworn-online; 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/@izkimar/plainsworn-online/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.