Keep your Star Wars roleplaying campaign focused on the action with the Star Wars: Age of Rebellion Game Masterâs Kit. The GM Kit includes a GM screen which will keep all the information youâll need as Game Master at your fingertips during your Age of Rebellion sessions. Youâll also find new rules for running military squads and squadrons. The GM Kit also includes a complete adventure, Dead in the Water, so you and your players can stand strong against the Empire, even after youâve finished the adventure featured in the Core Rulebook.