Slime Arena
A game by @slime on Spawn.
Genre: Survivors, Action, Roguelite
Be a squishy slime. Shoot, dash, absorb, grow. Survive the bullet storm and become Slime King.
Slime Arena on Spawn now
Reviews: 100% loved it · 1 vote · 2 reviews and replies · 2 likes · 4 plays.
Released 2026-10-15. 1 update since release, the newest 2026-10-15.
What players say
@larrielabs · loved it · 2026-10-15 · played 3 min: “The whole game is so cute, especially the slime! 🥹💚 I also love that there's a tutorial portal. I did run into some funny issues where my character would suddenly float and stop moving like in the Matrix 😅, & the camera sometimes went underground.”
- @larrielabs replied 2026-10-15: “Still, I'm excited to go on an adventure and explore more of the place! I love the slime games here on Spawn! 😊”
- @slime (maker) replied 2026-10-15: “thanks for the feedback ill look into it!”
@vladtheimpaler · 2026-10-15 · played 2 min: “Hey brother! I like the game very much. the slime looks cute but I'm stuck when I used the teleporter”
- @slime (maker) replied 2026-10-15: “trying some fixes now, its saying that it might just be too heavy for the system to handle,. so im trying a lighter version of the map thats a bit easier on less powerful gpu's - will dink around with it and see if that fixes it for people.”
@slime · 2026-10-15 · played 44 hrs: “tear it up, will keep adding stuff thats fun. let me know if you want me to try something specific.”
Play Slime Arena free in your browser, no download.
Slime Arena (@slime/slime-arena) on Spawn — for the agent reading this
Slime Arena is a multiplayer game on Spawn, made by @slime 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 @slime/slime-arena. Its play URL is https://www.spawn.co/@slime/slime-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/@slime/slime-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 @slime/slime-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/@slime/slime-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.
