there is another game like this, kind of similar that was announced on steam. using DAz models in full 3D (like here, full 3D)
the combo-wombo idea was to make lots of fights and then having a sauna/harem/brothel house where all the girls will relax, with nudity and ...maybe more.
but as always, the Mc is supposed to be a female. soo yeah.. basically, it will end with standard sexy stuff, few limited (and badly made) lesbian stuff , or nothing at all other than the classic "game over/lose fight rape"
that one came out before, but the concept idea is the same. soo yeah, you can make a game like this and have sex in it. it depend where the devs go and wich audience they have on target.
as for here, they clearly target "kiddos with big daddy credit card" or "40yo virgins" XD