I know of greenlight/steam, xbox arcade can sell your game for you, but what are the options in selling it yourself? Do you need a buisness license? Can you just do transactions over paypal? Put copies on eBay? or What?
While steam, xba and a few other platforms are obviously the best choices of selling your products.
I’m not sure if you need a business license to sell your game independently but that may depend on where you are located in the world. I don’t believe Minecraft had a business license when it first went up for paypal!
Anywho here is a pretty good list of marketing / selling indie game talks and articles.
Selling Indie Games
You can A) Make a website which allows you to sell you’re game as a download. or
B) Find a website that will support Unity files, do some editing, and you can sell it there.
You don’t know a business license I believe,unless its something like disc based,where you send people the discs or sell them in stores.