Really nice art, decently fun gameplay, and it's awesome that you made it without a game engine, but I feel like maybe you should port this to a game engine? The artwork's too vibrant to not have animations along with it, and it would enhance the basic gameplay if we could see the dice being rolled.
Also I do think that being able to get through the later levels is very RNG, which I mean, the whole game is, but it doesn't feel nearly as much fun towards the end.
I hope you keep working on this, it could be really great with a bit more bells and whistles.