Math Castle (itch)

This is a simple game that has the player select a difficulty, and then solve math problems to progress through randomly generated levels.  Easy mode is addition, subtraction or multiplication on two single digit numbers.  Medium is the same operations on three numbers, up to a value of 20.  Hard includes division, and allows values up to 99. I'm putting it out for the lowest price itch will allow, mostly to gauge interest.  This is a project I'm willing and able to continue development on if people want to see more.  I already have a few ideas of what to add - monsters that take damage when you get the answer right, boss fights, items that increase the players damage, health, etc.  I would also like to hear from players what they would like to see in the game.  Thank you for taking a look, let me know what you think!