LAS VEGAS, Jan. 7 /PRNewswire/ -- CES 2008 -- THX Ltd., Neural Audio Corp. and Sierra Entertainment, a division of Vivendi Games, today announced that Prototype, the first-person shooter (FPS) for next-gen gaming consoles and PCs, will be the world's first video game to feature Neural-THX(R) Surround. The Neural-THX Surround technology enabled Radical Entertainment, an internal development studio of Sierra Entertainment, to extend the surround sound experience from 5.1 to 7.1, allowing gamers with Neural-THX Surround capabilities on their audio-video receiver to play Prototype in 7.1 discrete surround sound. Prototype will go on sale in the U.S. in fall 2008.