Heads up, Creators: On Dec 13-14 you may see a noticeable decrease in your sub count as we remove spam subscriptions. If spam is removed, you'll see a YouTube Studio alert: https://goo.gl/qGDBvX This should help give you confidence that the subs you do have are real fans!
In my opinion, since you purchased the game you should have rights to anything contained in said game. It's bs and just another way to squeeze the little guy.