Team Fortress 2 (TF2) is the sequel to the game that put class-based, multiplayer team warfare on the map.

Unreal is a series of first-person shooter video games developed by Epic Games.

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.

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.

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 released in 2002.

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.

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 set in modern times, beginning with Modern Warfare.

Left 4 Dead (abbreviated as L4D) is a cooperative first-person shooter arcade-style video game.

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

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.

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

Going beyond "run and gun corridors," "monster-closet AIs" and static worlds, BioShock creates a living, unique and unpredictable FPS experience.

S.T.A.L.K.E.R.: Shadow of Chernobyl is a first-person shooter video game by the Ukrainian developer GSC Game World, published in 2007.

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.

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.

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! .

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.

Urban Terror started as a realism based "total conversion" mod for Quake III Arena.

Nexuiz was originally developed by Lee Vermeulen and Forest ‘LordHavoc’ Hale, who started Alientrap in the summer of 2002.

Killing Floor is a "Total Conversion" mod for http://alternativeto.net/software/ut2004/ game. Playing as a squad of marines, you must use firepower and teamwork to drive back massive hordes of bloodthirsty zombies.

Mirror's Edge is a single-player first person action-adventure video game developed by EA Digital Illusions CE (DICE) and published by Electronic Arts.

Overwatch is a team-based shooter where heroes do battle in a world of conflict. Overwatch feature squad-based combat with two opposing teams of six players each.

CINEBENCH is a real-world test suite that evaluates your computer's performance capabilities. It's the perfect tool to compare CPU and graphics performance across various systems and platforms (Windows and Mac OS X).

Unvanquished is a free, open-source first-person shooter combining real-time strategy elements with a futuristic, sci-fi setting. It is available for Windows, Linux, and Mac OS X.

Paladins is a fantasy FPS by Hi-Rez Studios, developer of Smite, Tribes Ascend and Global Agenda. It is currently available for PC. As of 2/6/2016 it is in closed beta. When released it will contain small micro-transactions.