A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
Your best bet would be to use actual contracts in this case I'd imagine. Freelancers want paid upfront, and for a good reason; but at the same...
I've never really used Twitter, but I'm interested in getting more involved with it and game development. Will follow back if I get one from you!...
It happens a lot, especially on projects that are revenue shared and don't offer upfront payment. If you're doing some type of project that...