Well, I suppose we can just have one person working on the game, and send them the stuff.

Thanks for the heads up, though!

You don't NEED a pro subscription to form teams. You can still have one person with the actual project, but different people are working on the different assets.

The pro subscription allows people to work on a project simultaneously. You can still have a set up which allows team members to edit a project at different times. The set up will be scuffed as hell, but it's better than nothing.