Do you mean things like prefab objects? As long as you include proper accreditation and the content is fair use I'd say that's fine. Lots of users have made prefabs specifically designed for these jams.
A member registered Oct 07, 2021 · View creator page →
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Ain't she a beaut?
Twin ceramic rotor drives on each wheel!
Submission for Crocojam #5 - Robots
What's the point of a dungeon without some juicy loot at the end?
My submission to CrocoJam April 2022