alright, tossing a dumb idea down here, ranching game based around either purchasing or capturing monster girls, feeding them copious amounts of food, and then selling whatever goods they produce. food can either be grown(cheap but low quality), or bought(ranging from not so cheap to expensive, but high quality), and the more you feed your mons, the bigger they get and the more they can produce, like
“food capacity of 10, produces item at 6, 4 left over times quality of food(1-5)=chance of increasing cap by 1-3”
along with some fun/cute descriptions depending on their states, and depending on the ambition there could also be a decent or wide selection of monster girls, from vanilla (mermaid) to MGE (mermaid, mershark, sea bishop, selkie)
and that’s about it. if anyone wants to go with this be my guest, i can come up with a lot more if needed