   Game Master - Table-Top RPG Encounter Generator
  http://www.scottscreations.com/showcase/gamemaster/Basically it reads xls "excel" sheets for its data and those can be altered. It then generates random encounters for your role playing needs. It has a dice roller built-in. You need to download a map to play on *link to maps on website provided* and right now there are no item drops from the monsters.The link has a screen shot. You will need Java 1.6   