OpenArena has been discontinued. Similar games include Xonotic, which is free and open source. Other options are Unreal Tournament, Quake, AssaultCube and Red Eclipse. There's no shortage of First-Person Shooters like OpenArena, with more than 25 alternatives for Windows, Linux, Mac, Android and iPhone.
Tremulous is a free, open source game that blends a team based FPS with elements of an RTS. Players can choose from 2 unique races, aliens and humans. Players on both teams are able to build working structures in-game like an RTS.
United States
Serious Sam is a first-person shooter video game series that follows the adventures of protagonist Sam "Serious" Stone and his fight against the forces of the notorious extraterrestrial overlord Mental who seeks to destroy humanity.
Croatia
EU
Urban Terror started as a realism based "total conversion" mod for Quake III Arena. Nowadays, Urban Terror is played using the free, stand-alone, ioquake3 engine modified, which doesn't require Quake III Arena, in addition to being an add-on to id Software's...
United States
SPRAWL 96 is a celebration of our retro shooter SPRAWL, released for the first anniversary of SPRAWL's release. It’s also our way of giving thanks and giving back to the communities which made SPRAWL possible.
Zandronum is a multiplayer oriented port, based off Skulltag, for Doom and Doom II by id Software.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
United States
Nexuiz was originally developed by Lee Vermeulen and Forest ‘LordHavoc’ Hale, who started Alientrap in the summer of 2002. The goal of the project was to create a high quality first person shooter that could be played freely across all platforms in one package: PC, Mac, and...
Canada
Fortress Forever is a free game inspired by the earlier versions of the Team Fortress series (Team Fortress Classic and QuakeWorld Team Fortress).
Free online shooter featuring multiple game modes, customizable weapons, numerous maps, both PvP and PvE gameplay, clan wars, and regular updates. Offers character personalization, dynamic events, leaderboards, and fast-paced, tactical multiplayer combat.
South Korea
TrueCombat: Elite is a FREE modification for the Enemy Territory game (also free). It is a realistic modern day FPS featuring state of the art models and textures.
Digital Paint: Paintball 2 is a Paintball game that started out as a mod for quake 2 but then took on a life of its own as an open source fps game with a global player and clan management system.
United States
