From the Sin Ver.0.10b by Vorpal Win/Android/Mac - Adult Sex Game

From the Sin is a grand tale about a wide and mysterious world. You, the main character, find yourself awakening as one of the last males in a vast fantasy-themed and post-apocalyptic land full of Monster-girls and superior beings far beyond comprehension.

As you try to resolve the existential mystery of your improbable circumstances, innumerable races across the continents fight for survival in their own unique ways. Mana is increasingly scarce overtime, causing violence, sin, ***napping, and... romance.