FPS

You play as Daniel Garner, a seemingly regular guy who has just been killed in a horrific car accident. Trapped in a dark and unwelcoming world between heaven and hell, you struggle to uncover the reasons why you've been denied entry into heaven. Awaiting your purification, you must fight through an endless number of demon soldiers as you attempt to stop the imminent war.

Unreal Tournament 2004 is an online FPS from Epic Games and Infogrames, and the follow-up to the previous entry Unreal Tournament 2003. Assault mode returns, and a new strategy-oriented mode called Onslaught is added. Possibly more notable are vehicles throughout the maps, some of which require multiple pilots to operate completely.

Unreal Tournament 2003 is an online FPS from Epic Games and Infogrames, and the follow-up to the highly successful Unreal Tournament. UT2003 features improved graphics, improved physics, faster gameplay, and a higher emphasis on teamplay over its predecessor.

Serious Sam: The Second Encounter is an FPS from Croteam and Gathering of Developers. You play as Sam "Serious" Stone, and do battle with thousands of alien nasties throughout various historical set-pieces, using an array of diverse and enormous weapons.

Close Combat: First to Fight is a squad-based military first-person shooter. The player commands a fireteam of 3 other U.S. Marines in a realistic, though fictional scenario where the United Nations sends Marines into Lebanon when their Prime Minister falls ill and Syria and Iran send forces to bolster certain factions.

Quake 3 is an online FPS from Id Software and Activision. In a departure from its predecessors, it completely lacks a traditional singleplayer campaign, and the emphasis is mostly on deathmatch.

Half-Life 2 is an FPS from Valve Software, and was one of the most highly anticipated sequels of all time. You return as Gordon Freeman, the strong and silent-type physicist, and you must do battle with an alien race of enslavers to liberate the surviving remainder of humanity on earth.
Also applies to Half-Life 2 Lost Coast free downloadable level.

Unreal Tournament is an online FPS from Epic Games and GT Software. Its main competition being Quake 3, it distinguishes itself from the Quake games by focusing on team-based games such as team deathmatch, capture the flag, and assault, rather than free-for-all deathmatch.

Half-Life is the groundbreaking FPS that follows the "everyman" hero Gordon Freeman. This is the first installment of the ongoing series, which ties together aliens and government conspiracies. Really, this game doesn't need any introduction...