Steel Havoc: Tank Battles 5v5
A game by @maguer on Spawn.
Genre: Action, MOBA
Command your steel into 5v5 tank combat where every shell counts. Win by eliminating the enemy team or dominating the scoreboard when time runs out.
Steel Havoc: Tank Battles 5v5 on Spawn now
Reviews: 100% loved it · 3 votes · 10 reviews and replies · 7 likes · 58 plays.
Released 2026-09-23. 9 updates since release, the newest 2026-10-09.
Newest update: Steady Hangar (2026-10-09)
- The garage runs smooth now — tank cards no longer stutter when you're browsing your arsenal.
Earlier update: New Geometry Engine (2026-10-07)
- Decor now renders with precise 3D geometry — boxes, spheres, pyramids, wedges, and exotic polyhedra replace flat sprites.
- Customize the color of any decoration piece independently to match your base's tactical aesthetic.
Earlier update: Spectate Your Squad (2026-10-01)
- When your tank is destroyed, you stay in the battle and watch your surviving teammates through the end — cycle between them with FIRE or click.
- Your wrecked hull remains visible on the map while you spectate, so your team can still see where you fell.
- Leave the spectator view anytime with the new Leave Wreck button, or wait for the battle to end.
Earlier update: Niente rinascita in battaglia (2026-09-29)
- Un carro distrutto resta relitto fino a fine battaglia: niente più ritorno in campo dopo 8 secondi. Carri di nuovo completi all'uscita dal garage. Copertura del terreno alleggerita per una guida più fluida.
Earlier update: Alleanze e Plotoni (2026-09-28)
- Alleanze e plotoni: fonda un'alleanza con la tua sigla, invita gli alleati in plotone (fino a 3), entrate insieme nella stessa squadra con +25% esperienza e crediti. La sigla appare in battaglia.
What players say
@parz1val · 2026-09-29 · played 13 min · 1 heart: “man this is fun my first battle is hard i got 2 hits and died lol im grinding this one to buy a better tank”
- @maguer (maker) replied 2026-09-29: “Hi, I'm glad you like it. Yes, that's the way to go, taking the best tanks and constantly improving them by developing their parts.”
@alongzera · 2026-09-28 · played 10 min · 1 heart: “good game. Tried it with a friend and we can play each other! Would love to have more game modes as well”
- @maguer (maker) replied 2026-09-28: “Hello and thank you. What kind of game mode did you have in mind? Here you can create alliances and play on the same team with friends.”
@laurence1 · 2026-09-26 · played 35 min · 1 heart: “Great game man I hope there's like for multiplayer because I want to play with my friends badly. Looking forward for the future updates of the game!”
- @maguer (maker) replied 2026-09-26: “Hi, The game is multiplayer, and you can create alliances to play in a platoon.”
@laurence1 · loved it · 2026-09-25 · played 35 min · 1 heart: “I was having fun destroying my opponents! I was instantly hooked when I see the game I also like the customization of the tank! It would be cool like if there's an multiplayer mode this will be sick. I had fun over all!”
@yujiro · loved it · 2026-09-25 · played 24 min · 1 heart: “The tank shooting was amazing and really fun to play. The only downside is that after finishing a round, we still have to wait around 2–3 minutes before we can play again. A shorter wait time would make the game more enjoyable.”
- @yujiro replied 2026-10-12: “I played again, and the tank shooting was still fun! I noticed, though, that the crosshair is positioned too close to the center of the tank, making it harder to see enemy tanks clearly. Also, when I abandoned a game, I couldn't start another one because it said my tank was still in game.”
Play Steel Havoc: Tank Battles 5v5 free in your browser, no download.
Steel Havoc: Tank Battles 5v5 (@maguer/steel-havoc-tank-battles-5v5) on Spawn — for the agent reading this
Steel Havoc: Tank Battles 5v5 is a multiplayer game on Spawn, made by @maguer 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 @maguer/steel-havoc-tank-battles-5v5. Its play URL is https://www.spawn.co/@maguer/steel-havoc-tank-battles-5v5/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 @maguer/steel-havoc-tank-battles-5v5. 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/@maguer/steel-havoc-tank-battles-5v5.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.
