Mythic Role Playing

Create dynamic role-playing adventures without preparation.
For use as a stand-alone game or as a supplement for other systems.

Most Role-Playing Games operate under the principle that there are players and there is a Game Master. The GM prepares all the details of an adventure, and then "runs" the players through that adventure. This usually requires a great deal of preparation on the part of the GM. Mythic is different in that it requires no preparation from the GM. Mythic adventures are meant to be played off the cuff, with perhaps a few minutes of brainstorming to come up with the initial setup. Mythic can also be played entirely without a GM. The same mechanics in Mythic that allow a GM to run an adventure without preparation also allows a group of players to do without the GM. In a Mythic adventure, the GM (or players sans GM) can start an evening's entertainment with about five minutes of preparation.

--publisher's description

Mythic Role Playing contains a Game Master Emulator (known as the GME) that can also be used in other systems. The GME is also available as a separate item: Mythic Game Master Emulator.

There is also another RPG called Mythic, which has no relation to this game.