Thank you for your comment! In it's current state the game involves a lot of luck but you can preview the contents of a room by hovering your mouse over it before you move into the room (though there seemed to be a bug in this version that only shows the preview on the first run).
Currently we are working on the balancing on the game and adding new types of encounters. We also want the classes to be more specialized in certain fields. I will upload an updated version when the rating period is over.