GSC Game World

Released as Venom. Codename: Outbreak in Russia. First-person shooter developed by GSC Game World.

"In the year 2010, a malicious virus has infected a virtual reality machine, the FireStarter. The intruding program has caused the computer to malfunction. The rules of the simulation have been altered in a potentially deadly manner, with the player's consciousness trapped inside. There is only one possible way to escape, by completing the game with a period of 48 virtual hours. The penalty for failing to do so is the ultimate one – real death." - GOG.com description

S.T.A.L.K.E.R.: Call of Pripyat is the sequel to S.T.A.L.K.E.R.: Shadow of Chernobyl, a first-person shooter computer game by Ukrainian developer GSC Game World. Call of Pripyat is the third game in the survival FPS S.T.A.L.K.E.R. series.

S.T.A.L.K.E.R.: Clear Sky, is the prequel to S.T.A.L.K.E.R.: Shadow of Chernobyl, a first-person shooter video game by Ukrainian developer GSC Game World. The game consists of a roughly 50/50 mix of new areas and old, remodeled areas from the previous game. The X-ray graphics engine has been updated to version 1.5 and includes DirectX 10 support (later patch 1.5.06 included DirectX 10.1). Additionally, the AI received an overhaul to accommodate the new faction wars feature.

Cossacks 2: Napoleonic Wars is the sequel to Cossacks: European Wars and focuses on Nineteenth Century European warfare.

Heroes of Annihilated Empires is a fantasy-themed RTS/RPG hybrid from GSC. The game features four playable races, twelve neutral races, three hero classes, and gameplay that can be treated as an RTS or an RPG at the player's choice.

Cossacks: European Wars is a historical RTS from CDV Software and GSC Gameworld. You command armies of one of many European countries in the 17th and 18th centuries and fight massive battles with armies of rival countries.