Chris Pramas is the founder of Green Ronin Publishing and a designer and developer of many RPG games and accessories. His Dungeons & Dragons credits include Slavers (with Sean K Reynolds), and Guide to Hell, as well as some work on the third edition Player's Handbook and Dungeon Master's Guide. He has also done work for Warhammer Fantasy Roleplay. He first contributed to the Pathfinder Chronicles campaign setting in 2010 with a city-state in Guide to the River Kingdoms.