Romance of the Nine Empires is a fictitious interactive collectible card game (CCG) set in the fantasy world of Countermay. In the game, players assume command of one of nine vastly different warring factions — including steampunk aliens, a dark god-king's crusade of conversion, displaced WWII-era American GIs, and a risen empire of the undead — to expand, glorify, or defend their empires. Through its fictitious fifteen-year history, players have shaped the world of Countermay through their individual and collective achievements, and the results are reflected in the story and the current state of the empires. That concept was inspired by the Legend of the Burning Sands CCG, which in turn is based on the Legend of the Five Rings CCG: in those real-life games, tournament results affect the actual story in future expansions.