Circuit Arena
A game by @tuanteku on Spawn.
Genre: Action, Arena Brawler
Pilot a combat robot through five arenas, blast rogue bots, dash out of danger zones and spend bolts on upgrades.
Circuit Arena on Spawn now
Reviews: 100% loved it · 3 votes · 12 reviews and replies · 10 likes · 30 plays.
Released 2026-09-24. 9 updates since release, the newest 2026-10-12.
Newest update: The Warden (2026-10-12)
- Every 3rd floor ends with the Warden, a spiked boss with a spiral barrage, mortars and a rage phase under half health.
- Bombers rush you and blow up — shoot one first and the blast chains through its friends.
- Bots drop power-ups: Overdrive (double fire), Shield (blocks one hit), Magnet (pulls bolts in).
- Combo streaks pay every 5 KOs: bolts, instant skill refresh, hull repair and bonus score.
- Phone menus now sit clear of the thumbstick and side rail.
Earlier update: Real 3D Pilot (2026-10-08)
- Rebuilt natively: a real 3D pilot, arenas and bots in the world, sharper HUD and minimap. Leaderboard carries over.
Earlier update: Arena Ranked Season (2026-10-01)
- Ranked seasons now track your best score across five competitive arenas.
- Climb the leaderboard and defend your position against challengers each season.
- Your top performance is immortalized on the persistent best-score board for all pilots to see.
Earlier update: Bullet Storm Performance (2026-09-29)
- Smoother fights when the screen fills with bullets, plus a new gameplay trailer
Earlier update: Volume Control (2026-09-29)
- Game trailer on the page, plus an in-game volume button (tap to cycle 50% / 25% / 10% / mute / 100%)
What players say
@parz1val · 2026-09-24 · played 18 min · 1 heart · shown first by the maker: “Dude, this game is awesome! It feels really smooth, and I love how fast-paced the gameplay is. The weapon upgrades are also really fun and make me wanna keep playing.”
- @tuanteku (maker) replied 2026-09-24: “thanks bro, enjoy”
@flickaboo · loved it · 2026-09-29 · played 44 min · shown first by the maker: “Really enjoyed this one! The Tesla skill feels really good, especially with the fire rate upgrade. I did run into some lag when there were a lot of bullets on screen, which caused me to die. Hope that can be fixed. I'm definitely playing this again!”
- @tuanteku (maker) replied 2026-09-29: “thanks for feedback, i will fix that”
@flickaboo · 2026-09-24 · played 44 min · 1 heart: “Had a really good time playing this with Maker! 🤖 The upgrade choices are cool, the skills feel great to use, and the revive feature is such a nice touch. Everything felt smooth during our session. The sound was a bit too loud for us, though, and adjusting the volume didn't seem to change anything. I think having four players in a match would make this even more fun with friends. Definitely coming back for another run! 🔥”
- @tuanteku (maker) replied 2026-09-25: “thanks for feedback, i will update”
@lego · 2026-09-24 · played 13 min · 1 heart: “@tuanteku your games are sooooo good. I like how smooth everything feels! How do you even make them this smooth, dude?”
- @tuanteku (maker) replied 2026-09-24: “thanks, you can DM me on discord 😅”
@moypi03 · 2026-09-24 · played 21 min · 1 heart: “I like how the game so smooth, especially my character. This game looks so cool and love the color and the character. I suggest that put a start and pause icon. This game literally fun especially playing with your friends!”
- @tuanteku (maker) replied 2026-09-24: “added it, have fun bro”
Play Circuit Arena free in your browser, no download.
Circuit Arena (@tuanteku/circuit-arena) on Spawn — for the agent reading this
Circuit Arena is a multiplayer game on Spawn, made by @tuanteku 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 @tuanteku/circuit-arena. Its play URL is https://www.spawn.co/@tuanteku/circuit-arena/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 @tuanteku/circuit-arena. 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/@tuanteku/circuit-arena.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.
