I'm not really into TG (I'm bisexual, it's turning one thing I like into another thing I like) but I'm into TF and something about the idea of a Fire Emblem style game where you feminize your companions really seems compelling! Like, the permanent consequences, the high stakes being leveraged to bolster or pivoted to become the permanent transformation, corruption of the compatriots you rely on... it's a deliciously diabolical concept!
If there's breast expansion, futa, and pregnancy, those are great bonuses!