There was once a desktop game called Super Mario War, developed somewhere around 2005. The game went on until about 2010, when development stopped. Recently, however, a of people (myself included) have been trying to work on a multiplayer online version. I decided to try it with Player.io. 100% of Super Mario War's graphics, music, and sounds are from the Mario games. So this brings up some questions:
1) Are games with copyrighted content allowed to be made with Player.io?
2) Even if they are allowed, what are Player.io's reactions to these games? (don't like, try to stay away from, etc.)
3) Would games like this be allowed to use PayVault and other services? (I definitely don't plan to, but for other people with similar ideas)
4) Without PayVault and other income-generating services, would there still be copyright issues that would arise, and would they hurt Player.io?