Hey, tbh I haven't played your game on Steam so I have no idea how this compares to the "real" game.
I played as the knight and generally I thought the game was pretty fun! However I didn't understand why there needs to be a crafting menu if you can only combine the same items (or did I misunderstand that?). Wouldn't it be better to trigger the upgrade automatically once the 3rd item of the same type is collected?
Either way nice work and wish you the best :)