Natural Selection by Unknown Worlds
During its time, Natural Selection was one of the first games to merge both FPS and RTS genres into one game. The game revolves around an army of marines who are fighting against an invading race of Aliens. This aspect of the game is played primarily in first person in large maps set in spaceships and space stations.
With regards to Natural Selection’s multiplayer, it was one of the first games to incorporate a “Commander”. The Commander has a top-down view of the battlefield and assumed a support role for the marine forces. He had the ability to drop supplies, issue orders, construct buildings and upgrade weapons and equipment. Natural Selection is a novel indie game with a lot of unique elements that make it a game worth trying.
There is currently a Natural Selection 2 that will soon be available.