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 environments while battling a variety of monsters using a wide array of guns.

Commercial Mac OS X Windows Linux Steam

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 which is all spawned and driven by the community itself.

Free Open Source Mac OS X Windows Linux BSD

Borderlands

Borderlands is a science fiction first-person shooter with RPG elements made with cel-shaded graphics (cartoonish).

Commercial Mac OS X Windows Linux

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 must fight his way through the hordes of invading demons from Hell.

Commercial Windows Steam

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 addictive and fun! .

Free Open Source Mac OS X Windows Linux

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, Domination, Overload, Harvester, and more.

Free Open Source Mac OS X Windows Linux

Alien Swarm

Alien Swarm is a free top-down shoot-em-up video game by Valve Corporation.

Free Mac OS X Windows Linux

Mafia

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

Commercial Windows Linux

The Lord of the Rings Online

The Lord of the Rings Online (LOTRO) is the first MMORPG set in the world of J.R.R. Tolkien's The Lord of the Rings. LOTRO takes place in a persistent online world and is free-to-play

Freemium Mac OS X Windows Web

Dead Space

Dead Space is a survival horror third-person shooter video game for Microsoft Windows, PlayStation 3 and Xbox 360. The player controls Isaac Clarke (named after science fiction writers Isaac Asimov and Arthur C.

Commercial Windows Linux

The Mana World

The Mana World (TMW) is a serious effort to create an innovative free and open source MMORPG. TMW uses 2D graphics and aims to create a large and diverse interactive world.

Free Open Source Mac OS X Windows Linux BSD FreeBSD

Tremulous

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.

Free Open Source Mac OS X Windows Linux

Aion

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

Freemium Windows

Alien Arena

alien arena is a free and opensource first-person shooter game that combines a 1950s-era sci-fi atmosphere with gameplay similar to quake , https://alternativein .

Free Open Source Mac OS X Windows Linux BSD

Aliens vs Predator

Aliens vs. Predator is a science fiction first-person shooter video game, developed by Rebellion Developments

Commercial Windows

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 five levels long.

Commercial Windows

Eternal Lands

Eternal Lands (EL) is a free, multiplayer, online role-playing game (MMORPG) created by Radu Privantu in 2002. The setting is a medieval fantasy world.

Free Open Source Mac OS X Windows Linux BSD Web FreeBSD

Rage

Developed by id® Software, the creators of DOOM® and QUAKE®, RAGE is a groundbreaking first-person shooter set in the not-too-distant future after an asteroid impacts Earth, leaving a ravaged world behind.

Commercial

Wizard101

Create your Wizard here and play for free! Wizard101 is an online Wizard school adventure game featuring collectible card magic, pets, and duels.

Freemium Mac OS X Windows

PlaneShift

PlaneShift is a Free Massively Multiplayer Online Role Playing Game. Free? That's right, by making the software's code available for all, PlaneShift allows anyone to improve the game for the benefit of all.

Free Open Source Mac OS X Windows Linux