Try the controls with no upload needed — a short generated run, no music, random biome each time.
Export Sealed Game
Bakes your uploaded tracks directly into a new file. Anyone you send that file to can play it, but can't add, remove, or swap any track — only you can, from this editable copy.
Only music you upload here is ever used — nothing is bundled or played automatically. Files stay in this browser tab and aren't saved anywhere.