Here are some of the things Brian, Amy, and I made mention of in the podcast:

Twilight 2000 (http://en.wikipedia.org/wiki/Twilight_2000)

Traveler 2300 (http://en.wikipedia.org/wiki/2300_AD)

World of Darkness (http://www.white-wolf.com/new-world-of-darkness)

Dungeons and Dragons (http://www.wizards.com/DnD/)

Apples to Apples (http://en.wikipedia.org/wiki/Apples_to_Apples)

Pathfinder Society (http://paizo.com/pathfinderSociety)

Robotech / Macross