On follow up question to this, I notice that even some scam casino can add this game provider despite they are new and no licensed. And does casino license is required or not?
Rarely is it a solo casino owner who just decided to open up a scam casino, it's always an established operator that already has the whole infrastructure, and decided to open up a black label brand that can operate in a country where they can't operate with their white label brand. And since it's almost always an established operator, they have ways of masking that black label casino internally and still have all the providers that they have on the rest of their group of legit brands. So depending on the size of the operation, they can have a license per se, to get all the providers in, but there are ways on working around it if you truly want to be black.
I'm saying this because I know the guys at Evolution and they would never support a scam casino, but unfortunately the scam in this business is both-sided, and sometimes game providers can get scammed by the operator as well. From my experience the established game providers are the only ones that don't scam anyone, while everyone else always has some loop holes and I hate it.
Basically, no legit, award winning game provider has it in its interest to scam anyone, especially when the business formula is so bulletproof that you don't need more, you just stick to your RTP method and offer great games, the money will come.
What’s the typical cost for adding game provider like Evolution gaming, Pragmatic and others as set
I've already answered your question on the cost in another thread, basically there are onboarding fees, bonus fees and they take a chunk of your NGR (net gaming revenue) that has been associated with their games. It all depends on on how much traffic and how many players you have, if the volume is good, you can get extra discounts and deals.