Nice idea for a game! I loved the concept, and the execution was pretty good! The game got increasingly difficult as I lost my cards however, and I lost to a rat in the room full of rats because the random draw didn't give me enough damage or healing to survive the next fight. To improve, I would suggest making the game easier; I like the deck building part, and losing cards when you use them isn't terrible, but I would much rather the game depends on strategy rather than luck of the draw. A good effort though!