Relatively easy to understand the game yet I appreciate if there is a Difficulty Level.
I like the easy to learn roguelike aspects and minimal BGM/SFX. Though as I am more a casual player that would prefer to chill when playing games, even for Strategy types, I appreciate if there is a Difficulty Level (Easy to Extremely Hard). I believe just letting the game run on idle mode (when it is easy to clear the level) would have more appeal to players. The players who yearn more challenges can enjoy the higher Difficulty and might ask for a Leaderboard Score for their runs.