Purposely making a game hard is purposely making a game bad. Easy is fun, hard is not. The purpose of a game should be for people to play and have fun.
I'm going to explain what the modern game is about for you. It primarily comes from three separate sources, which, while entertaining, had other purposes than JUST having "fun".
1. Sports, where teams work on tactically beating other teams each game.
2. Board games(think "Go"), where the elites of society competed in strategy.
3. Gambling(Or "gaming") games of chance, where there's usually a mix of computing possibilities and comparing it with whoever your opponent is(either dealer, or other players at a table or alley).
Try telling a sports fan that it's not fun to play against a tougher team.
Try telling a chess fan that en passant should be banned because it complicates the vanilla game.
Try telling a professional poker player that they have an equal chance to win as a pleb.
You'll get laughed out of the room.
Modern games typically contain at least one of the sources, if not multiple, in all its genres. The ones that don't are generally included when they should actually be put in a side category called "Interactive Fiction".
[/rant]
As far as the game itself, it pretty much has already been said. Quite an enjoyable effort so far, although my interest is more on the gameplay than the adult content.