System Mastery reads and discusses old roleplaying games, the weirder the better.  Whether you’re curious about the bizarrely regimented early days of 70s games or the Burgess Shale of 80s and  90s outré design, System Mastery has you covered. Join Jef and Jon and their punishing reading schedule and learn a little bit about where your favorite games got their roots…just kidding, the show is 90% by weight jokes about cartoon hot dogs and ska music.