The Dice Table is located in the Tavern.
There are 6 characters you can play dice against once you've unlocked them in the game.
You'll see the cost and prizes under each character. You'll have the chance to earn quest items at the Dice Table. If you have reached the end of content, or don't have any quests that require you to find an item, you will only be able to win gold.
NOTE: If you have unlocked the Troll and Dragon scroll down the list to see them.