already told, but yes! actually they need to bring money in the market via deposit, there are no benefits for referring authors or referring affiliates.
should be all fine with a regular license, i read all twice last days, cause i had exactly the same question. as long the game is for free it is no problem to use regular licenses.
maybe make it as freebie in deviantart
maybe too many? this is a very special topic and i prefer to see less hoster and server provider, just focus on the top companies. top means best speed and servicee not high affiliate commissions. to my mind there are some companies inside the list which should not be listed there.
good luck man! i wish something like that would happen here, but my region is too boring :/