WEBZEN unveiled the official gaming service for Arctic Combat, the highly anticipated FPS game, after successfully completing the global open test using Windows Azure. In 2011, WEBZEN initiated the technology verification process for the hybrid method of connecting Windows Azure with its own private cloud. WEBZEN reviewed its methods to optimize the game server and operating platform architecture so that they worked smoothly and efficiently in the hybrid cloud. In addition to IaaS capability, WEBZEN tried to find ways to use its PaaS capability to manage the game server efficiently, from authentication to billing.