Mac OS - Single player multiplayer 
SiN is a first-person shooter video game based on a modified version of the Quake II engine developed by Ritual Entertainment and published by Activision in late 1998. The game was later released over Steam platform on April 5, 2006, either as a stan ...
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Nexuiz is a free first-person shooter video game developed and published by Alientrap. The game and its media are released under the GNU General Public License (GPL) and uses the DarkPlaces engine, a significantly modified Quake engine. A remake, als ...
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SourceForts is a multiplayer capture the flag mod for the computer game Half-Life 2. Two teams, red and blue, construct forts made from metal cubes and panels to protect their flag, and attempt to break into their opponent's fort to steal the enemy f ...
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Savage 2: A Tortured Soul is a fantasy and science fiction themed video game that combines elements of the first-person shooter, real-time strategy, and action role-playing game genres. It is developed and published by S2 Games. It is the sequel to S ...
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Day of Defeat: Source is a team-based first-person shooter multiplayer video game developed by Valve Corporation. Set in World War II, the game is a complete remake of Day of Defeat, updated from the GoldSrc engine used by its predecessor to the Sour ...
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Half-Life 2: Episode Two is a first-person shooter video game, the second episode in a series of sequels to the 2004 Half-Life 2. It was developed by Valve Corporation in tandem with Episode One, the first game in the series, and released in 2007 via ...
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Enemy Territory: Quake Wars is a first-person shooter video game developed by Splash Damage and published by Activision for Microsoft Windows, Linux, Mac OS X, PlayStation 3 and Xbox 360. The prequel to Quake II, Quake Wars is set in the same science ...
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Half-Life 2 (stylized as HλLF-LIFE2) is a first-person shooter video game and the sequel to Half-Life. Developed by Valve Corporation, it was released on November 16, 2004, following a protracted five-year $40 million development, during which a s ...
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Wolfenstein: Enemy Territory is a free and open source multiplayer first-person shooter video game set during World War II. It was originally planned to be released as a commercial expansion pack to Return to Castle Wolfenstein and later as a standal ...
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Half-Life: Opposing Force is an expansion pack for Valve Software's science fiction first-person shooter video game Half-Life. The game was developed by Gearbox Software and Valve Corporation and published by Sierra Entertainment on November 19, 1999 ...
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BioShock Infinite is a first-person shooter video game developed by Irrational Games and published by 2K Games. It was released worldwide for the Microsoft Windows, PlayStation 3, and Xbox 360 platforms on March 26, 2013; an OS X port by Aspyr was la ...
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Left 4 Dead 2 is a cooperative first-person shooter video game, the sequel to Valve Corporation's Left 4 Dead. The game launched on November 17, 2009, for Microsoft Windows and Xbox 360 in the United States and November 20 in Europe. On September 5, ...
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Team Fortress 2 is a team-based first-person shooter multiplayer video game developed by Valve Corporation. It is the sequel to the 1996 mod Team Fortress for Quake and its 1999 remake. It was released as part of the video game compilation The Orange ...
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Half-Life 2: Episode One is a first-person shooter video game, the first in a series of episodes that serve as the sequel for the 2004 Half-Life 2. It was developed by Valve Corporation and released on June 1, 2006. Originally called Half-Life 2: Aft ...
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Counter-Strike: Source is a complete remake of Counter-Strike using the Source game engine. As in the original, Counter-Strike: Source pits a team of counter-terrorists against a team of terrorists in a series of rounds. Each round is won either by c ...
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- multiplayer Single player
Marathon Infinity is the third game in the Marathon Trilogy of science fiction first-person shooter computer games from Bungie Software. The game was released on October 15, 1996 and included more levels than its predecessor Marathon 2. These were la ...
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