Souls of the Goddess

Crania, Goddess of Death, doesn't just collect souls, she gets pregnant with them. Chasing down gods to be impregnated with the souls of their creation, giving birth to them, then fighting off demons and angels who want them dead is the actual job description here, which is a strange one even by the standards of the genre.

The loop runs on both ends of that premise. You fight, using Crania's long legs to crush enemies in combo-based combat, and you fuck, since sex with demons, angels, and other creatures is how the souls get made in the first place. Beaten enemies aren't just cleared, they're unlocked as actors for gallery mode later. Between fights you can reshape Crania's look with different clothes and hairstyles, and move through 3D environments built for both the combat and the sex to happen in.