www.desktopdungeons.net
Best $20 I have spent in a while. I love the game. It's a Roguelike game with a good story and a kingdom building aspect. I am a huge fan of this genre and I am glad to see one of this caliber being made. If you buy it now you get instantly in the beta, You can try before you buy with the free Alpha demo but its nothing like the beta/retail game.