I know this should likely be in the Product section, was just taking to long to figure out how to start a new thread.
What is the difference (if any) between "Pathfinder" games and "GameMastery" games. The same modules seem to be listed in both areas, so I'm trying to figure out the differentiation between Pathfinder subscription, Pathfinder Modules subscription, and the GameMastery products listed. Is one name just transitioning into the other?
It's just a rebranding. GameMastery Modules will now be called Pathfinder Modules, there's no difference in the two. Since the modules are all set in Golarion, the campaign world of Pathfinder, it made since to call them Pathfinder Modules. The GameMastery brand is being used on game-aids that are more systemless, like the Critical Hit Deck, Map Packs, Flip Maps, etc.