Games similar to Syphon Filter include Team Fortress 2, which has a free version. Other options are Counter-Strike, AssaultCube, Call of Duty and Borderlands. There's no shortage of First-Person Shooters like Syphon Filter, with more than 50 alternatives for Windows, Linux, Mac, Android and iPhone.
Ready or Not is a tactical first-person shooter developed by Ireland-based VOID Interactive. Ready or Not follows the operations of a police SWAT team in the fictional city of Los Suenos, California, in the midst of a crime...
New Zealand
Experience true combat gameplay in a massive military sandbox. Deploying a wide variety of single- and multiplayer content, over 20 vehicles and 40 weapons, and limitless opportunities for content creation, this is the PC’s premier military game.
Czechia
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
Thief is a series of stealth video games in which the player takes the role of Garrett, a master thief in a fantasy/steampunk world resembling a cross between the Late Middle Ages and the Victorian era, with more advanced technologies interspersed.
United Kingdom
Tom Clancy's Ghost Recon is an American video game series of military tactical shooters, created by Red Storm Entertainment, a game development studio founded in part by American author Tom Clancy.
United States
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.
United States
An action-adventure stealth video game developed by Konami Computer Entertainment Japan and first published by Konami for the PlayStation in 1998. The game was directed, produced, and co-written by series creator Hideo Kojima.
Japan
Warframe situates players as members of the Tenno race, newly awoken after years of cryo-sleep into a solar system at war. Reborn into a corrupt era, the Tenno are sought by the oppressive Grineer Empire for annihilation.
Canada
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
One of the most popular online action games of all time, Team Fortress Classic features over nine character classes -- from Medic to Spy to Demolition Man -- enlisted in a unique style of online team warfare.
United States
Day of Defeat: Source features multiplayer, team-based gameplay set in the WWII European theatre of operations. Players choose a role and tackle goal-oriented missions based on historical operations.
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.
United States
