The second in Slave Maker 3 no licence ether but but atleast he had this to say
Please do not take this as approval for someone to take over the game as such. I do completely give approval for someone to continue a separate 'fork', so 'SlaveMaker - Bob's Version' or whatever. Do what you like with the source code.
I DO NOT give approval for any of this to be used in any way for a commercial reason, and this includes Patreon/SubscribeStar etc. There is far too much in the game that is being used on a fair use basis or just un-credited
P.S. Slave Maker is a NSFW game where you train sex slaves.
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