Can you really build the infrastructure required to bring a massively multiplayer online game (MMO) to life in the cloud? This session discusses the evolution of Red 5 Studios' FireFall—a free-to-play MMO. FireFall runs entirely on the AWS platform and allows players from around the world to play together in the cloud. The session covers some of the design decisions made over the last two years—the things that worked well and not so well. The session also presents some of the solutions Red 5 implemented to ease the transition from dedicated data center hardware to virtual servers in AWS.