Each character die has one face which is marked with a +, (the icon for universal success) and one face marked with either a triangle (the icon for mental success) or a square (the icon for physical success).
The remaining four faces can be customized by the player, as he sees fit.
Beginning characters start with four character dice, gain icons and dice as they gain experience and temporarily lose dice when they are injured.
Characters roll their bones (dice) once per task they are attempting and compare the number of successes they have rolled to the opposing roll to determine the results of their efforts.