Heaven Will Be Mine

From Wikipedia:

Heaven Will be Mine is a sci-fi romance visual novel developed by American studios Pillow Fight Games and Worst Girl Games for Windows, Mac, Linux, and iOS. The story is set in an alternate history post-Cold War universe wherein humanity has split into three warring factions, known as the Memorial Foundation, Cradle’s Graces, and the Celestial Mechanics. Over the course of the game the player, through combat interactions with the other two faction pilots, can gradually push one of these three factions toward dominance over space and humanity’s future.