FPS

First person shooter

Ghost Recon: Advanced Warfighter (GRAW)

Tom Clancy's Ghost Recon: Advanced Warfighter (GRAW) is an FPS based in the world of Tom Clancy's Ghost Recon. The "Ghost Recon" team is an anti-terrorist team. In this installment the player takes the role of Captain Scott Michael, and leads efforts to protect the US & Mexican Presidents (among other missions).It'shows you the future of military science, today. In 2013, the U.S. Army will implement the Integrated Warfighter System -- combining advanced weapon systems, satellite Communication devices and enhanced survivability into one fully integrated combat system.

ARMA: Armed Assault

Armed Assault is a military FPS from Bohemia Interactive and IDEA Games. Gameplay and technology is similar to Operation Flashpoint, which was also developed by Bohemia Interactive. The campaign takes place on a fictional Atlantic island, and follows a conflict between a communist regine and a democratic monarchy. You play as a US soldier in a squad, and must aid the local militia in fending off an offensive by the northern regime. Gameplay, like Operation Flashpoint, emphasizes realism, attention to detail, and very large maps (up to 250 square miles).

PlanetSide

Synopsis: Scientists have located a wormhole that leads to another galaxy and almost directly to an inhabitable planet. A couple of teams of scientists and platoons of soldiers are sent through to study and bring back technology to Earth to help the quality of life and prevent it's demise. The wormhole closed up shortly after arriving, causing different ideals to form into factions on the new planet Auraxis.

F.E.A.R. Combat

F.E.A.R. Combat is a multiplayer FPS from Monolith and Sierra. It is a repackaged version of the competitive multiplayer modes of F.E.A.R., and is downloadable and playable for free. It features 22 maps, 10 game modes, support for user-created content, and the ability to play against owners of the original game as well as other F.E.A.R. Combat players.

You can acquire a game key and download the game here:
http://www.joinfear.com/main

Call of Juarez

Call of Juarez is an western-themed FPS adventure. The game's plot is located in 19th century Wild West, with the player taking the roles of Billy, a sneaking fugitive, and the reverend Ray, the uncompromising bounty hunter on his trail. Fast paced revolver duels using historically accurate firearms, horseback riding and stealth action in memorable locations set after Western movies.

Serious Sam II

Serious Sam II (or Serious Sam 2) is a science fiction first-person shooter video game released for the PC and Xbox and the sequel to the 2001 computer game Serious Sam. It was designed and developed by Croteam and was released on October 11, 2005.
In the single-player campaign, the player assumes the role of hero Sam "Serious" Stone in his adventures against the forces of the extraterrestrial overlord, "Mental", who seeks to destroy humanity. Taking place after the events of Serious Sam: The Second

Cube 2: Sauerbraten

Cube 2: Sauerbraten (German for "sour roast", also known as Sauer) is a cross-platform, Quake-like first-person shooter that runs on Microsoft Windows, Linux, FreeBSD and Mac OS X using OpenGL and SDL. The game features single-player and multiplayer gameplay and contains an in-game level editor, its main feature. The game engine is free and open source software, under the zlib License, with commercial support available from the developer's own business counterpart, Dot3 Labs.

War Rock

Free-to-play online FPS, which had widescreen support at one time. Is anyone still playing this?