US MarshalsUS Marshals is a rules-light tabletop roleplaying game that assumes the player-characters are Marshals (or Deputy Marshals) in the American Wild West ¸ official representatives of the Federal government of the United States of America enacting the laws¸ subpoenas¸ and will of federal courts¸ Congress¸ and the President with broad-reaching jurisdiction. All you need to play are these rules¸ a few scraps of paper¸ pencils¸ at least two six-sided dice (2d6)¸ and a few friends! One person runs the game as the Gamemaster (GM)¸ while everyone else plays as a Marshal; the more the merrier! US Marshals uses an original game system from Fat Goblin Games ¸ The Difference Engine . All challenges in the game boil down to a simple mechanic known as The Difference Engine ; two opposing rolls of a pair of six-sided dice (2d6)¸ each with a modest Bonus added. You compare the results¸ calculate " The Difference ¸" and use that to determine success directly — the greater The Difference ¸ the greater the effect! In something like combat¸ that may mean The Difference is added to a weapon's damage¸ while if attempting something like a long jump across a ravine¸ The Difference could equal the number of yards your character can make it with a flying leap. Dynamic difficulties that change with each roll of the die and built-in variable success help to inform the narrative with each challenge in The Difference Engine ¸ moving the story forward in exciting ways from moment to moment.