I’ve been using Claude Opus 4.6 in VS Code for coding, and Three.js plus procedural animation for the visuals.
I also built a browser-based music tool called Arcade Composer that I use for my games, and everyone here is welcome to use it for their music if it’s helpful. It includes an AI Composer and a free procedural Song Builder, so it’s good for creating original tracks during game jams.
https://app.arcadecomposer.com/
If the organizers are open to it, it might be cool to add the link to the jam description as a resource.