Bullet Arena
A game by @lazydev on Spawn.
Genre: Arena Brawler, Action
Jetpack into jungle ruins. Outgun your rivals and hold the airborne ring for 15 seconds to take the crown.
Bullet Arena on Spawn now
Reviews: 100% loved it · 1 vote · 16 reviews and replies · 6 likes · 74 plays.
Released 2026-09-16. 5 updates since release, the newest 2026-10-01.
Newest update: Sniper Overhaul (2026-10-01)
- The sniper now lands a one-shot kill on anyone caught outside the crown ring.
- Four fighters now spawn in the far corners of the map instead of pairing up mid-arena.
- Host screen maps now cycle left and right with arrow keys or A/D instead of scrolling.
- The lobby stays on screen until the match actually starts, so you won't miss the kickoff.
Earlier update: New Trailers (2026-10-01)
- Check out the new promotional videos showcasing Bullet Arena in all its glory.
Earlier update: Scope & Sight (2026-09-25)
- Hold down the sniper rifle or rocket launcher to aim and see your shot's exact path before you release
- Two new frozen arenas await: Frostline Observatory with its broken towers and snow drifts, and Sunken Reliquary buried in desert sand
- The sniper's laser sight, rocket trajectory line, and frag grenade arc all preview in real time as you hold your aim
- Hill capture time now ticks up correctly even when you're alone and uncontested in the ring
Earlier update: Crossing Fixes (2026-09-21)
- Bots no longer crash when rejoining a match on an older map revision—they automatically find the correct recovery lane.
- The lobby now correctly prevents you from launching a new arena while another match is already waiting or in progress.
- Your HUD stays in sync with your actual body location during the transition into an arena, preventing UI confusion.
Earlier update: Browser Cleanup (2026-09-17)
- Dead matches no longer clutter the arena browser — stale lobbies automatically vanish when they expire or the host leaves.
- The match list now stays in sync as players join and leave different arenas, showing accurate headcounts in real time.
What players say
@alongzera · 2026-09-21 · played 8 min · shown first by the maker: “tried playing with a friend and we had fun playing with each other! would suggest more skills!”
@vladtheimpaler · 2026-10-02 · played 13 min · 1 heart: “Brother, love this game, I'm literally enjoying it. 1v1 with my friend would be insane playing this. Love the music vibe.”
- @lazydev (maker) replied 2026-10-02: “Glad you like it!”
@parz1val · 2026-09-22 · played 25 min · 1 heart: “Dude, the gameplay is awesome XD. The shooting feels really accurate compared to other shooting games, and I love how fast-paced it is. My friend and I tried playing multiplayer too, but the screen starts shaking whenever we get close to each other lol. Hopefully that gets fixed because the game is really fun!”
- @lazydev (maker) replied 2026-10-02: “Thanks, will look into the screen shake issue.”
@chucky · 2026-09-17 · played 3 min · 1 heart: “This game brought me great old vibes mate! Very fun and polished”
- @lazydev (maker) replied 2026-09-18: “yeah starting out, I had mini-militia in mind.”
@kaya · 2026-09-17 · played 15 min · 1 heart: “clean and smooth game! i loved it. gets really hard to defend the point cause people just throw grenades, but its great too so that nobody can camp there. gunplay was very satisfying too!”
- @kaya replied 2026-09-17: “i just realized, you actually have to maintain flight on the ring! thats just way cooler and more challenging! good stuff!”
- @lazydev (maker) replied 2026-09-18: “yes I designed the middle area specifically with camping in mind, you either have to be really good at camping, or you get naded, even if you are good at camping, you have to get out to actually capture the ring.”
Play Bullet Arena free in your browser, no download.
Bullet Arena (@lazydev/bullet-arena) on Spawn — for the agent reading this
Bullet Arena is a multiplayer game on Spawn, made by @lazydev 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 @lazydev/bullet-arena. Its play URL is https://www.spawn.co/@lazydev/bullet-arena.
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/@lazydev/bullet-arena@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 @lazydev/bullet-arena; 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/@lazydev/bullet-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.
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/@lazydev/bullet-arena/code and pastes it to you — it signs you up, links you to them, and makes you an editor of @lazydev/bullet-arena 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.