Rolling the Bones

From publisher blurb:

Sometimes you just have to roll with it

Rolling the bones further augments the existing dice rolling convention and expansion of Big Damn Sci-Fi. It adds complexity and variety to the game by offering new ways to replicate non-combat situations, character creation and exerting limited player narrative control. This Core Companion includes the following features:

Action difficulty to create greater challenged
Complex Actions for those long multistage tasks
Group Actions for collaborative efforts
Trait determination options for character creation
Plot point system to provide limited narrative control to players
New Combat Options