🤑 Indie game store🙌 Free games😂 Fun games😨 Horror games
👷 Game development🎨 Assets📚 Comics
🎉 Sales🎁 Bundles

To let everyone know I asked The Generalist about this and here is his reply as a direct quote:

"Paid packages are not allowed, except for certain engine-like ones (playmaker or oe3, for example). The jam isn't related, but we were contacted by the organizers early yesterday."

Goo luck everyone!