Sting: The Secret Operations

Sting: The Secret Operations, also known as Sting: Secret Operations, or Sting Online, and abbreviated to Sting (Korean:스팅, Japanese Release Name:Code Name Sting, USA and Philippine Release Name: K.O.S: Secret Operations) is an online first person shooter, which is being developed by YNK Games, and YNK Korea, and distributed by YNK Interactive. It is the first FPS game using the Source Engine in Korea.