Alien Arena is described as 'free and opensource first-person shooter game that combines a 1950s-era sci-fi atmosphere with gameplay similar to Quake , Doom and '. There are more than 25 games similar to Alien Arena for a variety of platforms, including Windows, Linux, Mac, Steam and BSD. The best alternative is Xonotic, which is both free and Open Source. Other Alien Arena like games are Counter-Strike (Freemium), Doom (Paid), Quake (Paid) and Cube 2: Sauerbraten (Free, Open Source).
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 which is all spawned and driven by the community itself. Xonotic is a direct successor of...
Counter-Strike (CS) is a series of multiplayer first-person shooter video games, in which teams of terrorists battle to perpetrate an act of terror (bombing, hostage-taking, assassination) and counter-terrorists try to prevent it (bomb defusal, hostage rescue).
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 must fight his way through the hordes of invading demons from Hell. Represent entire series of Doom games including Doom , Doom II: Hell on Earth, Final Doom, Doom 64, Doom 3, Doom (2016), Doom Eternal.
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 environments while battling a variety of monsters using a wide array of guns. The successor to id’s... Represent entire series of Quake games.
Warsow is a completely free fast-paced first-person shooter (FPS) for Windows, Linux and Mac OS X, set in a futuristic cartoonish world where rocketlauncher-wielding pigs and lasergun-carrying cyberpunks roam the streets.
Red Eclipse is a fun-filled new take on the first person arena shooter, built as a total conversion of Cube Engine 2, which lends itself toward a balanced gameplay, with a general theme of agility in a variety of environments.