This is a list of some of the most popular freeware and free and open-source softwarefirst-person shooter games.

Games For Mac Os X Free
Free First Person Shooter Games For Mac Os X
Free Fps For Mac
Fps Games For Mac Free
Fps Mac Games
Fps Games For Mac Os X

Title	Developer	Release date	Last update	Operating system	Engine	License	Notes
Action Quake 2	The Action Team	1998	2003	Linux, Windows	id Tech 2	Freeware	Team and Deathmatch based very fast FPS
AssaultCube	Rabid Viper Productions	2006	2013	Linux, Mac OS, Windows	Cube Engine	zlib License (code), Individual licenses (media)	Realistic environments, fast arcade game play, many game modes. Single/Multiplayer.
Black Shades	Wolfire games	2001	Linux, OS X, Windows, Mac OS, iOS	Wolfire Games	Freeware	Free First-person shooter
BZFlag	Chris Schoeneman, Tim Riker	1993	2016-10-10 (2.4.8)	Linux, BSD, OS X, Windows, other UNIX	GNU LGPL	Tank combat
Chub Gam 3D: Director's Cut	ChubGamSoft	1998	MS-DOS	Pie in the Sky	Freeware	Surreal horror single player game
CodeRED: Alien Arena	COR Entertainment, LLC	2004-11	2011-12-29 (7.53)	Linux, BSD, OS X, Windows	CRX Engine	GNU GPL (code), Proprietary license (media)	Science fiction, with single or multiplayer modes.
Cube	Wouter van Oortmerssen	2001	2005-08-29	Linux, BSD, Mac OS, Windows	Cube Engine	zlib License (code), Individual licenses (media)	Quake style multiplayer deathmatch. Single/Multiplayer.
Cube 2: Sauerbraten	Wouter van Oortmerssen	2004	2020-11-30	Linux, BSD, OS X, Windows	Cube 2 Engine	zlib License (code), Individual licenses (media)	Quake style deathmatch, includes built in level editor. Single/Multiplayer.
The Dark Mod	Team Dark Mod	2009	2015-02-08 (2.03)	Windows	id Tech 4 engine	CC-BY-NC-SA	First person stealth game in the style of the Thief (series) games (1 and 2) using a modified Id Tech 4 engine
Fallen Empire: Legions	GarageGames, InstantAction	2009-06-30	2013-06-27	Windows	Torque Game Engine	Proprietary license	First-Person Shooter with Jetpacks, Multiplayer, CTF, Deathmatch
Freedoom	Freedoom project	2019-10-22 (0.12.1)	Linux, OS X, Windows, Android, Mac OS, MS-DOS, others	Doom engine	GNU GPL (code), BSD (media)	A Doom WAD file intended to be used instead of the copyrighted file from the original Doom and Doom II.
The Glorious Mission	Giant Interactive Group	2013-06-20	Windows	Proprietary license	Online multiplayer. Developed with the People's Liberation Army of China for use as a recruitment and training tool.
Gore: Special Edition	4D Rulers	2008-07-04	Windows	AMP engine	Proprietary license
Hidden & Dangerous	Illusion Softworks, Take-Two Interactive	1999-07-29	2001-11	Windows	Insanity Engine	Proprietary license
.kkrieger	.theprodukkt	2004	Windows	Proprietary license	Won first place in the 96k game competition at Breakpoint in April 2004.
KumaWar	Kuma Reality Games	2004	2006-07	Windows	Source engine	Proprietary license	Tactical episodic shooter. Single/Multiplayer.
Marathon	Bungie	1994-12-21	2007	Mac OS (original), ported to Linux, OS X and Windows via AlephOne	Aleph One	GNU GPL (code)	Released as freeware and source code.
Nexuiz	Alientrap	2005-05-31	2009-10-01 (2.5.2)	Linux, OS X (10.4 or later), Windows	DarkPlaces Quake engine	GNU GPL	Unreal Tournament style deathmatch. Single/Multiplayer.
OpenArena	OpenArena team	2005-08-19	2012-02-20 (0.8.8)	Linux, OS X, Windows	GNU GPL	Free software content remake of Quake III Arena. Single/Multiplayer
Point Blank	Zepetto, NCSOFT	2008-03	Windows	N/A	Proprietary license	Free FPS created by Zepetto in 2009. Close Beta version.
Red Eclipse^[1]	Quinton Reeves, Lee Salzman	2009	2019-12-19 (2.0.0)	Linux, BSD, OS X, Windows	Cube 2 Engine / Tesseract	zlib License	New take on the first person arena shooter, featuring parkour, impulse boosts, and more.
S.T.A.L.K.E.R. build 1935	GSC Game World	2009-02	Windows	xrCore build 1935	Proprietary license	2004 Alpha build of S.T.A.L.K.E.R.: Shadow of Chernobyl. Contains content and features cut from the final release. Has a number of bugs but contains a full, playable single player campaign.
Savage: The Battle for Newerth	S2 Games	2003-09-09	Linux, OS X (commercial), Windows	Silverback Engine	Proprietary license	Hybrid FPS/RTS with both ranged and melee combat
Savage 2: A Tortured Soul	S2 Games	2008-01-16	Linux, OS X, Windows (commercial)	K2 Engine	Proprietary license	The sequel to the award-winning game, Savage: The Battle for Newerth.
Smokin' Guns	Smokin' Guns Productions and Iron Claw Interactive	2009-01-01	2012-06-08	Linux, BSD, OS X, Windows, others	GNU GPL (code/some media) Proprietary license (some media)	Western Quake-like FPS. Single (with bots)/Multiplayer.
Starsiege: Tribes	Dynamix, Sierra Entertainment	2004 (free release)	Windows	Darkstar engine	Proprietary license	Futuristic team based combat, released for free to promote Tribes: Vengeance. Multiplayer only.
The DinoHunters	Kuma Games	2006-04-24	Windows	Source engine	Proprietary license	Also a machinima series. Single/Multiplayer.
Tremulous	Dark Legion Development	2006-03-31	2009-12-04 (preview release)	Linux, OS X (unofficial), Windows	GNU GPL	Aliens vs Humans multiplayer team combat with some RTS elements.
Tribes 2	Dynamix, Sierra Entertainment	2004 (free release)	Windows	Torque Game Engine	Proprietary License	Futuristic team based combat, released for free to promote Tribes: Vengeance. Single/Multiplayer.
UberStrike	Cmune	2010-09-17	OS X, Windows	Unity	Proprietary license	Free-to-play 'social shooter' on Facebook, MySpace and Apple's Dashboard Widgets.
Unreal Tournament	Epic Games	TBA	2015-03-09	Linux, OS X, Windows	Unreal Engine 4	Proprietary license	Crowdsourced and free first-person shooter.
Unvanquished^[2]	Unvanquished Development	2012-02-29	2018 (Alpha 0.51.1)	Linux, OS X, Windows	modified ioquake3	CC BY-SA 2.5/GPL	Fork of Tremulous with new assets
Urban Terror	Silicon Ice Development / Frozen Sand	2000-08-05 (Beta 1.0)	2016-09-30 (4.3.0)	Linux, OS X, Windows	GNU GPL (ioquake3 engine), Proprietary license (mod code, media)	Fast-paced, Hollywood tactical shooter. Originally a Quake 3mod, now a standalone game.
Warmonger: Operation Downtown Destruction	NetDevil	2007-11-28	2009-08-27	W

Fps Games For Mac Os X