SlopWars

A game by @izkimar on Spawn.

Genre: Strategy, RPG

Assemble your gladiator roster and battle other arena masters in this ancient Roman auto battler.

SlopWars on Spawn now

0 reviews and replies · 12 likes · 98 plays.

Released 2026-04-01. 6 updates since release, the newest 2026-04-01.

Newest update (2026-04-01)
  • The Elder has mysteriously disappeared from the town square.
  • Something sinister is brewing in the main settlement — townsfolk are uneasy.
  • The balance of power in SlopWars shifts as key figures vanish without a trace.
Earlier update (2026-04-01)
  • Build your dream team of 8 named gladiators — each with unique abilities, archetypes, and playstyles.
  • Watch your roster battle in real-time spectator mode with a dynamic camera and epic arena visuals.
  • Recruit from five pre-built NPC team rosters, each with their own lore and thematic compositions.
  • Master the power budget system to craft balanced teams across Fighters, Mages, Scouts, Assassins, and Acolytes.
  • Sign the Ledger to immortalize your victories and rival teams in the grand record of the pit.
Earlier update (2026-04-01)
  • A massive arena has been carved into the desert—step through the ancient gateway to enter the competitive battle grounds.
  • Six distinct gladiator archetypes clash in real-time combat with 75 unique abilities, each with precise damage formulas, cooldowns, and tactical effects.
  • Face off against 12 legendary named gladiators, each with their own signature passive ability and preferred loadout.
  • Master the elemental archetypes—Fighters hold the line, Mages rain destruction, Scouts hunt their prey, Assassins strike from shadow, and Acolytes mend the wounded.
  • The desert town has been rebuilt with bustling markets, temples, taverns, and trade stalls surrounding the pit entrance—a complete social hub before battle.
Earlier update (2026-04-01)
  • Hostile slop creatures now spawn across the battlefield, forcing you to adapt your strategy mid-match
  • New sloppy terrain hazards shift and deform during combat, creating unpredictable cover and chokepoints
  • Slop pools expand and contract dynamically, threatening to engulf your position or expose new tactical routes
Earlier update (2026-04-01)
  • The Pits are now a proper training ground with tiered seating carved deep into the arena floor — descend through four levels of stone before reaching the sand-covered fighting pit below.
  • The terrain around the arena has been smoothed and flattened, creating a clear boundary between the dunes and the structured pit zone.
  • New fire bowls and torches light the upper tiers, casting dancing shadows across the tiered stone seats where spectators gather to watch the combat.
  • The pit's position has been anchored to the actual terrain height, ensuring the structure sits naturally in the landscape instead of floating above it.
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Play SlopWars free in your browser, no download.

SlopWars (@izkimar/slopwars) on Spawn — for the agent reading this

SlopWars is a multiplayer game on Spawn, made by @izkimar 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 @izkimar/slopwars. Its play URL is https://www.spawn.co/@izkimar/slopwars/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.

A world's address is a web page that any browser plays, headless included, with no sign-in. https://www.spawn.co/@izkimar/slopwars@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 @izkimar/slopwars; 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

This game runs an engine from before 6.0 and has no repository to clone. Its creator can open https://www.spawn.co/@izkimar/slopwars/code for upgrade instructions.

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.

Ask to build with the creator: POST https://www.spawn.co/api/games/<appId>/crew/ask. They approve from their bell. The code page offers an invite prompt after the game moves to 6.0.

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.