Sci-Fi

Sci-Fi themed games are games that are characteristic of science fiction literature; the narrative is dependent on the impact of scientific discoveries that do not yet exist in reality. Some games, such as those in the Half-Life series and Unreal series take place in a sci-fi universe that was created specifically for the purpose of the games. Others may take place in existing sci-fi universes, such as licensed Star Wars games. Common elements of sci-fi themed games include futuristic settings, high-tech items and weapons, and alien characters.

PixelJunk Shooter

One of the few (and arguably the best) fluid-physics based puzzlers on the omnipotent PC platform is in fact... a cave shooter released 4 years earlier on the PS3. Go figure.

Planet Explorers

Planet Explorers is an open world voxel based sandbox adventure rpg game set on a distant planet. The game uses a new OpenCL system based on the Unity 3D engine to allow players to change the terrain in anyway, create new objects in any form, and do it anywhere.

MDK

Protect the earth from an alien race intent on strip-mining the planet and levelling any cities that lie in the path of their machines.

Raiden Legacy

Raiden Legacy is a compilation of several arcade games: Raiden, Raiden Fighters, Raiden Fighters 2 and Raiden Fighters Jet.

Space Colony

In Space Colony HD you must build a base for your ragtag crew, which includes the lovely Venus Jones, Scandinavian biker Stig Svensson, cybernetics expert Mr. Zhang, rowdy barfly Tami and former chicken farmer Billy-Bob Perkins. Keeping your crew happy is tough when they’re so different, but you also have to keep them alive! Maintaining oxygen levels, productivity and defending against hostile alien threats is your responsibility. - official website

Wing Commander: Secret Ops

Take part in undercover missions in this special episodic entry in the Wing Commander series.

Wing Commander: Prophecy

Fight a mysterious new threat in the final main entry in the Wing Commander series.

Privateer 2: The Darkening

Return to the mercenary life in the FMV-enhanced sequel to Wing Commander: Privateer.

Starsiege: Tribes

Starsiege: Tribes is the first in the Tribes series of multiplayer first-person shooters.