Natural Selection (NS) 7 years, Unknown Worlds release “Natural Selection 2″ (NS2) of the first screenshot. Original NS was born in 2002, when only a “Half-Life” an independent Mod, now it’s continued to make NS2 in 2010 into the Steam platform.

NS2 focus on multiplayer, strategy FPS games, Four elements of the game are as follows: real-time strategy elements,,,, dynamic environment, repeatability.

NS2 begins Source engine, but has now transferred to its own R & D Spark engine. Developer hopes in November will release client for the NS2 book produced by Spark engine Level Editor, players can use it to build their own barriers.