Military

Tom Clancy's Rainbow Six: Vegas is the fifth game in the Rainbow Six series of video games. It changes the series with multiple new features, such as a new health system where the player regenerates health while not taking fire (it should be noted that the player may sometimes be killed instantly, without a chance to regenerate health; this usually happens from grenades, as well as taking close range fire from very powerful weapons, particularly to the head). The player's vision is greatly impaired while damaged, similar to the health system in Gears of War.

A new narcotics cartel destroyed the local DEA-office in Bogotá. And now as DEA special agent Victor Corbet, codename El Matador you must bring justice on Colombia's La Valedora drug barons.

Tom Clancy's Splinter Cell: Chaos Theory is a critically acclaimed third-person stealth-based video game developed and published by Ubisoft. Chaos Theory is the third game in the Splinter Cell series endorsed by writer Tom Clancy. The game follows the covert activities of Sam Fisher, an agent working for a black-ops branch within the NSA called "Third Echelon".

Lock On: Modern Air Combat or LOMAC, is a modern combat flight simulation developed by Eagle Dynamics and published by Ubisoft in Europe and 1C Company in Russia; it is considered as a survey simulator by its creators.

IL-2 Sturmovik: Forgotten Battles (Russian: Ил-2 Штурмовик: Забытые сражения), also known in Europe as Rebirth of Honor, is a combat flight simulator video game, and sequel to the 2001 combat flight simulation of the year IL-2 Sturmovik developed by the Russian software firm 1C. Unlike the first installment, Forgotten Battles focuses on the Soviet-Finnish Continuation War of 1941-1944.

Defcon: Everybody Dies is the World's First Genocide'em up game from Introversion Software (The last of the bedroom programmers), developers of Uplink: Hacker Elite. In Defcon you play the role of a military Commander hidden deep within an underground bunker. Your mission is to successfully exterminate your enemy's civilian population whilst disabling their ability to attack your own. The game supports multiplayer for upto 6 players, multiplayer in demo version is restricted for 2 demo players only. Defconwas released on 29.September 2006.

Company of Heroes is WW2 Real Time Strategy game from the development team behind Warhammer 40,000: Dawn of War and Homeworld. It attempts to combine riveting, accessible real-time strategy gameplay with the cinematic sensibilities of World War II movies. The game supports multiplayer games for two to eight players via LAN or internet.

Two subsequent standalone expansion packs (Opposing Fronts and Tales of Valor) are available, and once installed can be accessed through the same in-game menu.

Day of Defeat: Source is a team-based multiplayer FPS from Valve Software which has players fight during World War II as members of either the Axis or Allies.

Counter-Strike: Source is a multiplayer FPS from Valve Software that pits terrorists and counter-terrorists against each other in a variety of settings to battle it out.

Joint Task Force is a PC real-time tactics game where players command military forces in combat situations based on modern day conflicts.