The Dominion Rules License (or DRL) is the open gaming license 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 license, predating the better known Open Game License . 
The Dominion Rules, (3) the rights to distribute “Larger Works” and “Compatible Works”.
The main right under the DRL is the right of any person to copy, modify and distribute any changes to the Dominion Rules.
These provisions resemble those found in many open source licenses.
Version 1.1 of the DRL is the most prominent previous version. It was under this version of the DRL that Dominion Rules 2.0 was released in 2002.
The current version of the DRL is 2.0. It closely resembles version 1.1 but has been simplified in some respects. DRL v. 2.0 is the version under which Dominion Rules 3.0 was released in 2008. 
- Jump up^ John Munsch, “Making Sure An Open Source RPG Stays Available”: “Archived copy” . Archived from the original on 2008-06-25 . Retrieved 2008-05-09 .
- Jump up^ Seehttp://www.dominionrules.org