Nutshell

User Summary: Nutshell is a free story-oriented ruleset that fits comfortably on a 2" x 3.5" business card. To attempt a challenging feat, a player must risk a coin. The "planner" (game master) offers a choice of a few concealed coins, including the player's. If the player chooses their own coin, the attempt succeeds and yields an extra coin or two for the player.