It is a bit like a rancher asking the founder of the vegan movement how to raising livestock while making a living, pay his rent, pay for his children's educati

It is a bit like a rancher asking the founder of the vegan movement how to raising livestock while making a living, pay his rent, pay for his children's education, etc. The conversation can very easily become non-constructive, even when the more optimal answer could be focused on improving things, like using a more humane method of killing and better treatment when the livestock is alive. I would have just answered that the best way to develop free software games is to not be forced to rely on copyright in order to get paid. Get paid to work on it, rather than get paid after work has already been done. If one has to rely on copyright to get paid, a CC BY-NC license might be the best choice, as then the author still have exclusivity to put the game on stores. An other choice is a contractual trigger where once the author is not interested in exclusivity they they will release the code.