YNK Interactive announced today that open registration to all players for Closed Beta Testing has begun for their new free to play first person shooter, K.O.S. – Secret Operations. Due to heavy player demand during the first week of testing, all players are now invited into the final week of the Closed Beta for gameplay and stress testing. A major update with some fixes and additions has just been released, based on player feedback during the first week. This final week of testing will run through 10/13/09. Players who try out the game also have a chance to win an exclusive limited edition K.O.S. iPod Touch by entering the K.O.S. Feedback Kontest. Other contests and events are running during the final week as well, with some great prizes.

For more details, visit the official K.O.S. forums at http://KOS.DONTBLYNK.com