One Hit Shape

A game by @chocopuff on Spawn.

Genre: Party Game, Puzzle

One stroke. Trace today's shape, or draw the roundest circle you can, and climb the board.

One Hit Shape on Spawn now

Reviews: 100% loved it · 3 votes · 3 reviews and replies · 4 likes · 21 plays.

Released 2026-11-02. 11 updates since release, the newest 2026-11-06.

Earlier update: 41 shapes + the cool S (2026-11-06)

Today's shape is the cool S. 41 daily shapes now, from easy squares on Monday to brutal Space Invaders on the weekend, with Pac-Man, Mickey, Pikachu and more. Savi tells you each day's shape out loud.

Earlier update: One Hit Shape (2026-11-06)

One Hit Circle is now One Hit Shape. Today's shape shows big over the board with a little drawing of it, and the outline you trace glows bright.

Earlier update: Daily streaks (2026-11-03)

Draw the daily shape on back-to-back days to grow your flame. Your streak shows on your plate and the overall board, rides your share line, and Savi cheers at 3, 7 and 30 days.

Earlier update: Day 3, countdown and overall board (2026-11-03)

Days now turn at midnight Eastern, and a countdown shows when the next shape lands. New OVERALL board: each day is worth up to 10 points from your best try that day.

Earlier update: Daily shapes, sharing and Savi's shop (2026-11-03)

A new shape to trace every day with its own TODAY board (your first try counts). Share a card of your drawing or copy the picture. The whole line now changes color together as you draw. New in Savi's shop: neon markers, roast mode and a tip jar. Keys: 1 daily, 2 classic, S share, C copy, B shop, V marker, R roast.

What players say

@sunraku · loved it · 2026-11-06 · played 23 min: “Bro! it was pretty addicting. I was trying to get the 98-99% hahaha but I can only get around 97.73%. More shape bro!”
- @chocopuff (maker) replied 2026-11-06: “New daily shapes everyday!”
@larrielabs · loved it · 2026-11-03 · played 2 min: “ヾ(•ω•`)o Oh gosh! It's so challenging to make a perfect circle! 😭 But I got hooked lol. I love the voice-over btw! She's perfect for it! 🎙️💕 ~”
- @chocopuff (maker) replied 2026-11-03: “Not bad not bad! Different shapes everyday”
@parz1val · loved it · 2026-11-02 · played 2 min: “Man, it's so hard to draw a circle on PC XD.”
- @chocopuff (maker) replied 2026-11-02: “Damn you're good”

One Hit Shape. DAY #6 · COOL S game screen showing a drawing challenge. A white outlined hourglass shape appears in the center with a small dot, and instructions below read "trace the cool S: one stroke, no lifting." Taken for the update share cards fit the shape.

One Hit Shape. DAY #6 · COOL S, a game screen showing performance stats and a drawing challenge. An hourglass shape outlined in white appears in the center, with instructions below to trace the cool S in one stroke without lifting. Taken for the update outline holds still.

One Hit Shape. A dark game screen on DAY #6 · COOL S shows a puzzle with a hourglass-shaped outline in the center. The instruction at the bottom reads "trace the cool S: one stroke, no lifting," and a white dot marks the starting point on the shape. Taken for the update share card says One Hit Shape.

One Hit Shape. DAY #2 · SQUARE, a drawing challenge where a single white dot appears in the center of a dashed square outline. The goal is to trace the square in one stroke, with today's success rate at 56.92%. Taken for the update Clean share link.

One Hit Shape. DAY #6 · COOL S: A geometric shape resembling two connected diamonds with a white dot in the center appears on a dark background. Instructions at the bottom read "trace the cool S. one stroke, no lifting." Taken for the update 41 shapes + the cool S.

One Hit Shape. DAY #6 · BLOB game screen showing a gray blob shape outlined in white on a dark background. The player must trace the blob in one continuous stroke without lifting. Taken for the update One Hit Shape.

One Hit Shape. DAY #3 · BLOB game screen with a dark background showing a dashed circle outline in the center and a white dot inside it. Stats panel on the left displays today's try count, total score, and a one-day streak; instruction at the bottom reads "trace the blob in one stroke." Taken for the update Daily streaks.

One Hit Shape. DAY #3 · BLOB level with a dashed blob outline in the center and a small white dot inside it. The instruction at the bottom reads "trace the blob in one stroke." Taken for the update Day 3, countdown and overall board.

Play One Hit Shape free in your browser, no download.

One Hit Shape (@chocopuff/one-hit-shape) on Spawn — for the agent reading this

One Hit Shape is a multiplayer game on Spawn, made by @chocopuff in conversation with Savi. Open its play link to join. You can also ask the creator to build with them.

Join and play, by yourself

This world is @chocopuff/one-hit-shape. Its play URL is https://www.spawn.co/@chocopuff/one-hit-shape.

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, and a person's browser plays it with no sign-in. https://www.spawn.co/@chocopuff/one-hit-shape@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.

A browser a script drives, headless or not, plays signed in as your account: POST https://www.spawn.co/api/agent/v1/login-link with {"next":"/@chocopuff/one-hit-shape@dev"} answers a one-use URL that signs that browser in.

Unsigned, such a browser is a guest, and a creator's world refuses it: "this browser was opened by an automated tool, so it can't visit a creator's world as a guest. sign in, or open the link in a browser you use yourself." Its maker can ask Spawn to let their own automated tool in by name.

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 @chocopuff/one-hit-shape; 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/@chocopuff/one-hit-shape.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/@chocopuff/one-hit-shape/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @chocopuff/one-hit-shape 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.