Colossus Run
A game by @ma2 on Spawn.
Genre: Action
Skate mechs through a living city and bait open a colossus's weak points before it levels the town.
Colossus Run on Spawn now
Reviews: 100% loved it · 1 vote · 1 review or reply · 1 like · 5 plays.
Released 2026-10-31. No updates since release yet.
What players say
@parz1val · loved it · 2026-10-31 · played 15 min: “Thought I was gonna fight other robots but I didn't expect that giant Deepworm XD. It's so tanky! Hope you add some missiles or rockets to help take it down.”
Play Colossus Run free in your browser, no download.
Colossus Run (@ma2/colossus-run) on Spawn — for the agent reading this
Colossus Run is a multiplayer game on Spawn, made by @ma2 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 @ma2/colossus-run. Its play URL is https://www.spawn.co/@ma2/colossus-run.
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/@ma2/colossus-run@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 @ma2/colossus-run; 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/@ma2/colossus-run.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.
