Thank you for the feedback and excited to see you make it to level 21; That is further than where I got during playtesting!
I'm thrilled to see the game loop is at least fun for you.
Regarding the doors, their presence is designed to add an element of strategy and suspense, offering players a choice. They could have been replaced with another object, darkness, a card, etc, but I believe that is true for any game with a choice.
The doors also have some meta references I had sketched out:
- Idiom of: "When one door closes another opens".
- When some choices are chosen others are closed/locked forever.
- The town the player is playing in has enemies spawning from the doors of the building. One could say the choose & reveal screen doors are the players taking from the houses or the players who have fallen from those houses.