N.E.M.O.

I played this some 10 years ago, when it premiered in Poland. This is a good read, through flawed in many ways. The story is quite interesting and engaging. It is one of those games that likes to shock the reader and surprise them at every step. I remember sitting at the edge of my chair, playing through multiple rather short routes, trying to finally find the good route while slowly uncovering underlying secrets. N.E.M.O uses quite common device of unlocking new choices after we finish a route. We have some magic, devils, groundhog day shenanigans and more that I won't spoil here. While sex scenes do exist, they aren't really a focus of this game. This is a story of main character's self-discovery - how evil can he become while trying to fulfill his goals, and whether there don't exists something even worse that plays with his life like with a marionette. As someone in the comments mentioned, art is pretty basic, typical for western VN from that time, and in part redrawn from Fate/SN. There is nothing much to talk about it.