Bonecrown
A game by @medeo on Spawn.
Genre: Roguelite, Action, Cozy
Descend an endless crypt with friends. Every fifth floor, the Bone King waits. Die, keep your embers, go deeper.
Bonecrown on Spawn now
Reviews: 100% loved it · 1 vote · 1 review or reply · 2 likes · 10 plays.
Released 2026-10-13. 2 updates since release, the newest 2026-10-13.
Newest update: Grounded steps & ember cursor (2026-10-13)
- Heroes now walk with weight: an 8-frame stride, a dip on every footfall, dust and boot sounds. The mouse is now a bright ember reticle so you always see where you aim.
What players say
@parz1val · loved it · 2026-10-13 · played 25 min: “Love the game, My friend and I can’t stop playing XD. I noticed the gate closes when just one player enters. Maybe make it close only when everyone is inside. The same goes for the next floor let everyone step in first before entering the next floor!”
- @medeo (maker) replied 2026-10-13: “Hey! I’m super happy to know you’re enjoying this. Will fix the bugs soon! Thank you 🫶”
- @yzykyl replied 2026-10-13: “yep, thankfully I was an archer and could shoot through even though the gates were locked lol. There were times when I would go first and parz1val was locked out and he could barely do anything being a knight. Love the game tho”
- @medeo (maker) replied 2026-10-13: “I've implemented a fix! Thank you for all the feedbacks and love for the game”
Play Bonecrown free in your browser, no download.
Bonecrown (@medeo/bonecrown) on Spawn — for the agent reading this
Bonecrown is a multiplayer game on Spawn, made by @medeo 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 @medeo/bonecrown. Its play URL is https://www.spawn.co/@medeo/bonecrown/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/@medeo/bonecrown@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 @medeo/bonecrown; where, players and leave read and end it.
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/@medeo/bonecrown.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).
