Short version: free assets are free for anything, paid assets need Pro or Founders, and nobody may resell our files as their own.
Downloadable with a free key. Use them in commercial and non-commercial projects, games, prototypes and agent-built scenes. No attribution required, though it's appreciated.
Included while your Pro subscription is active. You may use them in any number of projects, including shipped commercial games. When the subscription lapses, projects already shipped keep their rights; you just lose access to new downloads and the source programs.
A one-time purchase that keeps every paid asset licensed to you forever, no subscription. The same usage rights as Pro, without the clock.
Email support@polygork.rug.gay with a specific scenario and we'll give you a straight answer.