Alternatives to Combat Arms for all platforms with any license

Xonotic

Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux. The project is geared towards providing addictive arena shooter gameplay...

Free Open Source Mac OS X Windows Linux BSD PortableApps.com
Portable Real time collaboration Add a feature

67 Like
Counter-Strike

Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation. It is a complete remake of Counter-Strike using the Source game engine.

Commercial Mac OS X Windows Linux
Multiplayer Works Offline Add a feature

115 Like
Quake

Quake is a series of first-person shooter video games released by id Software. In the game, players must find their way out of various maze-like, medieval...

Commercial Mac OS X Windows Linux Steam
No features added Add a feature

82 Like
Doom

Doom is a science fiction horror-themed first-person shooter video game in which players assume the role of a space marine, popularly known as "Doomguy", who...

Commercial Windows Steam
Multiplayer Single player Add a feature

42 Like
Borderlands

Borderlands is a science fiction first-person shooter with RPG elements made with cel-shaded graphics (cartoonish). At the start of the game, players select one of...

Commercial Mac OS X Windows Linux
Multiplayer Single player Add a feature

49 Like
AssaultCube

AssaultCube is a free, multiplayer, first-person shooter game, based on the CUBE engine. Taking place in realistic environments, with fast, arcade gameplay, it's...

Free Open Source Mac Windows Linux PortableApps.com
Multiplayer Portable Add a feature

29 Like
- Discontinued No more updates since Nov 2013 : http://assault.cubers.net/ (like Alien Arena, also noticed discontinued)
Call of Duty

Call of Duty is a first-person and third-person shooter series by Infinity Ward. The earlier games in the series are set primarily in World War II; later games have been...

Commercial Mac Windows
Multiplayer Works Offline Third person perspective Add a feature

63 Like
Cube 2: Sauerbraten

Cube 2: Sauerbraten is a free multiplayer/singleplayer first person shooter, built as a major redesign of the Cube FPS. Much like the original Cube, the aim of this...

Free Open Source Mac OS X Windows Linux BSD
Portable Add a feature

42 Like
- Discontinued No more updates since Jan 2013 : http://sauerbraten.org/ . 2013, like Alien Arena, noticed discontinued.
Mafia

Mafia is a third-person action-adventure video game. Able to play by using PlayOnLinux.

Commercial Windows Linux
Single player Add a feature

22 Like
Battlefield

Battlefield is a series of first-person shooter video games that started out on Microsoft Windows and OS X with its debut video game, Battlefield 1942, which was...

Commercial Mac OS X Windows iPhone iPad Playstation ... Xbox
Massive Multiplayer Multiplayer Add a feature

74 Like
Zandronum

Zandronum is a multiplayer oriented port, based off Skulltag, for Doom and Doom II by id Software. Zandronum brings classic Doom into the 21st century, maintaining...

Free Open Source Mac OS X Windows Linux
Free to play Multiplayer Single player Add a feature

11 Like
OpenArena

OpenArena is a community-produced deathmatch FPS based on GPL idTech3 technology. There are many game types supported including Free For All, Capture The Flag...

Free Open Source Mac OS X Windows Linux
Free to play Multiplayer Add a feature

30 Like
- Discontinued Development is not stopped but last version, 0.8.8, was released in February 2012.
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Aion

Aion is a visually stunning MMORPG where your character wields devastating powers and sweeping wings to explore a celestial world.

Freemium Windows
Free to play Multiplayer Add a feature

13 Like
Painkiller

The game is inspired by such classic titles as Quake and Doom, with the emphasis on killing large numbers of monsters. The game is divided into five chapters, each about...

Commercial Windows
Multiplayer Single player Add a feature

8 Like
Insurgency

Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this...

Commercial Mac OS X Windows Linux Steam
No features added Add a feature

3 Like