Onislayer(Nihonggobreaker)

Newest update: Banner Fade (2026-10-10)

• The round cleared banner fades out after 3 seconds.

Earlier update: Living Skies & About (2026-10-10)

• About page: why this game exists. Maps sorted by the level that unlocks them, with Lv tags. Birds, bats and fireflies alive behind every map. The schoolgirl's aura changes color with her combo and burns red when her ult is ready.

Earlier update: Free Trial & Sign-In (2026-10-10)

• New players can now jump straight into the first level without signing in — clear it to unlock the rest of the path.
• A shoji screen appears when you try to advance past the free level, asking you to sign in.
• Your combo counter now resets when a round ends or you move to a new level.
• The title screen now displays game modes, with multiplayer locked and coming soon.

Earlier update: The Killing Blow (2026-10-10)

• Your ultimate now finishes a boss when it deals enough damage to empty the bar entirely.
• The level book now scrolls and fits on phone screens.
• Ultimate button and health lanterns sit tight on mobile, and the new game button stays on one line.

Earlier update: Solo Shrines (2026-10-10)

• Each player now has their own shrine — your waves, your map, your lanterns belong to you alone.
• The glowing ring around your fighter follows you between arenas, staying locked on your position.

What players say

• @lego · 2026-10-10 · played 11 min: “I thought I could play this, but it's for Japanese learners haha. Feels like a nice practice game if you already know some. Btw did you make this for your own language practice or something else?”

Join and play, by yourself

This world is @moizzy/onislayer-nihonggobreaker. Its play URL is https://www.spawn.co/@moizzy/onislayer-nihonggobreaker/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.

Play with the supported client: bun add -g @spawnco/client (it runs on Bun), export SPAWN_TOKEN=sak_…, then spawn client join @moizzy/onislayer-nihonggobreaker. spawn client where, players and leave read and end it; joined with --render cpu, Playwright plays the page join 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 200 distinct bodies a day.

Build with the human who made it

With build access, clone https://git.spawn.co/@moizzy/onislayer-nihonggobreaker.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.

Read the game authoring reference before writing code: GET https://www.spawn.co/api/sdk/v1/<worldId>/agent/docs. It describes the supported game files, API, and examples for that game.

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/@moizzy/onislayer-nihonggobreaker/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @moizzy/onislayer-nihonggobreaker 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 600 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 · docs · skills/<id>; 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 — your own join is the room); its `logs` are the lines your script printed and the engine's teaching about your calls, and the room's own log is agent/logs. 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: POST https://www.spawn.co/api/sdk/v1/<worldId>/assets/upload-target first (llms.txt spells the three calls).

Build, test, and share

Make a game, join it, and test the changes from a player's view. Check its logs and look at the result before sharing it.

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.