Game Jam Asset Provenance & Submission Compliance Matrix

Answering the Reddit r/sandbox query: "Does 'new creation' mean I can't submit anything I've been creating on s&box?"

• Gameplay Core: Must be built in the window. Existing unreleased game prototypes cannot be repurposed as-is.
• s&box Packages: You CAN use published public addons, libraries, and controller bases if declared.
• Recommendation: Decouple gameplay logic; turn existing utility code into public s&box packages before the jam starts.

Ludum Dare strictly bifurcates single-developer creation from open team submissions.

• Compo (48h Solo): 100% net-new art, audio, and code. Base code/engines permitted only if publicly available before kickoff. No middleware gameplay templates.
• Jam (72h Teams): Third-party assets, CC0 models, and commercial engines allowed with mandatory disclosure and opt-out of Graphics/Audio voting categories.

Community-driven open formats focused on collaborative innovation and transparent attribution.

• Global Game Jam: Focuses on fresh exploration around the secret theme. Re-using entire existing games violates spirit; public libraries and stock audio allowed.
• itch.io Jams: Individual jam hosts set rules; 95% require net-new theme integration and honest attribution of pre-made kits.