A hard game that can be beaten in a day.

Hello everybody, so my friends and I are conducting a challenge where we're going to play a hard game for the first time and see if we can beat it in a day. The winner is the person who beats it or get's the farthest in it. Thing is, we've played most mainstream games like these (sayyy Dark Souls or Binding of Isaac or Celeste, you get the idea). We're trying to look for something relatively obscure, something that we can go in blind and try our hand at.

Another thing we want to emphasize is that the game shouldn't be graphic intensive; it needs to be something that a laptop with low specs can handle well.