Make Your Game Your Own! As the Game Master of a Pathfinder campaign, you're the architect of your players' adventures - a rewarding but sometimes challenging responsibility. With this book, your job just got a whole lot easier! Whether you're building your own monsters and adventures, looking for new subsystems to play out cinematic chases or tense infiltrations, or simply want to speed up your game with scores of NPCs ready for action, the Gamemastery Guide has you covered!