Publisher's blurb: Dominion Rules is released under the terms of the Dominion Rules Licence (DRL), an open-gaming style licence intended to encourage the distribution and development of Dominion Rules. From wikipedia: The Dominion Rules Licence (or DRL) is the open gaming licence under which the Dominion Rules role-playing game system is distributed. It is notable for being one of the earliest examples of an open gaming licence, predating the better known Open Game License.