The Old Gods are referenced throughout George R.R. Despite their significance across the franchise, very little is known about what the Old Gods actually are. They have no names, there's no "organized religion" per se, and no priesthood or anything, while worship of the Old Gods apparently predates nearly every surviving human institution in Westeros. Further, Bran Stark reveals a very tangible connection with the Old Gods through greensight, his "traveling" through the weirwoods, and the strange preservation of memory across time. If you haven't had a chance to play yet, Game of Thrones: Conquest itself is Warner Bros. Games’ long-running free-to-play mobile strategy title, originally released in 2017.