Spelunky is an adventure game where the player explores caves, kills monsters, and loots booty… and you find treasure too. Your avatar is an Indiana Jones type of character who carries a whip, some rope (for spelunking of course), and a few bombs. Exploration of the tomb-like caves is free-form as you can choose how much exploring you wish to do. Collect gold to add to your score, kill the menacing monsters that dwell in the caverns, save some distressed damsels, and play some craps while you’re down there (my favorite part of the game). There’s so much content packed into this polished game that it’s hard to believe that it’s free to download.