Battlefield (Series) Alternatives
Battlefield is described as '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 released in 2002'. There are more than 25 games similar to Battlefield for a variety of platforms, including Windows, Steam, Linux, Mac and Xbox. The best alternative is Call of Duty. It's not free, so if you're looking for a free alternative, you could try AssaultCube or PlanetSide. Other Battlefield like games are Halo (Paid), Squad Game (Paid), Arma (Paid) and Enemy Territory: Legacy (Free, Open Source).
- Halo is a science fiction, first-person shooter video game series, that centers on an interstellar war between humanity and a theocratic alliance of aliens known as the Covenant. Represent entire series of Halo games including Halo: Combat Evolved, Halo 2, Halo 3, Halo 3: ODST, Halo: Reach, Halo 4, Halo 5: Guardians, Halo: The Master Chief Collection, Halo Infinite. View 47 alternatives to Halo
- 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 addictive and fun!. View 59 alternatives to AssaultCube
No more updates since Nov 2013 : http://assault.cubers.net/ (like Alien Arena, also noticed discontinued)