What would be the concept of the game? Playing the owner of a harem of slaves?
That isn’t a concept that appeals to me, but I suspect the response you’d get from the forum community more broadly would depend a lot on the execution.
There are a lot of potential flash points around that sort of subject material, which would need to be handled very carefully. In particular, you might want to think about how you’re going to make playing a slave-owner (who presumably rapes his or her harem slaves?) interesting to the reader without creating the perception that you’re glorifying that behaviour.
It may also be worth mentioning that Choice of Games has a policy against publishing content that glorifies sexual violence.