Shin Megami Tensei If... is an RPG spin-off from the Shin Megami Tensei, and by extension the Megami Tensei franchise. Originally released for the Super Famicom in 1994 but never made it to the west. This game restructured the formula opting for a small scale setting as opposed to some of the larger worlds and themes of previous Shin Megami Tensei titles, a lot of the themes and features of Shin Megami Tensei If... ended up returning in future spin-off franchise, Persona.
The game follows a group of teenagers who are pulled into a demon world after another students ritual goes horribly wrong. You travel through labyrinths of demons in your school as well as in five towers based on the seven deadly sins. You can choose to not fight the demons and instead talk with them.