Diception

From publisher blurb: 30 Ready-to-Play Dice Games for your Tabletop Role-Playing Campaigns Dungeon Masters and Players alike have all met role-players who want to gamble in a tavern, haggle with a hag, or just pass the time during a long caravan ride. Finally, here’s a game supplement that lets you do just that! The perfect accessory for tabletop role-playing games: dice games your RPers can play DURING your campaign! These games can be adapted for any role-playing game; all you need is a standard set of gaming dice and a little of your imagination.