Games like Half-Life: Opposing Force on Steam

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HeXen II The Four Horsemen of the Apocalypse lurk in the shadows before you. They are Death, Pestilence, Famine, and War. They are the root of all that is evil, but the least of your worries. The last of the three Serpent Riders yet lives.

Similarity 66%
Price 4.99€
Rating 7.5
Release 03 Aug 2007
BioShock™ 2 Remastered In BioShock 2, you step into the boots of the most iconic denizen of Rapture, the Big Daddy, as you explore through the decrepit and beautiful fallen city, chasing an unseen foe in search of answers and your own survival.

Similarity 66%
Price 19.99€
Rating 7.0
Release 15 Sep 2016
BioShock® 2 Set approximately 10 years after the events of the original BioShock, the halls of Rapture once again echo with sins of the past. Along the Atlantic coastline, a monster has been snatching little girls and bringing them back to the undersea city of Rapture.

Similarity 66%
Price 19.99€
Rating 8.7
Release 09 Feb 2010
Wolfenstein: The New Order Wolfenstein®: The New Order reignites the series that created the first-person shooter genre. Wolfenstein offers a deep game narrative packed with action, adventure and first-person combat.

Similarity 65%
Price -85% 3.01€
Rating 9.0
Release 19 May 2014
Aliens vs. Ghosts Use Nukes, Electricity, Heat Rays and powerful Minions in this wave-based first person shooter providing endless hours of Ghost-slaying entertainment, solo or Co-Op. Only Ghosts stand in the way of your invasion of Earth.

Similarity 65%
Price 7.31€
Rating 8.4
Release 06 Jul 2022
Call of Duty: United Offensive Award-winning developer Gray Matter Interactive follows up on the success of Infinity Ward's Call of Duty™ - winner of over 80 Game of the Year and 50 Editors' Choice awards worldwide - with Call of Duty™: United Offensive™.

Similarity 65%
Price -25% 14.99€
Rating 8.3
Release 13 Oct 2006
Call of Duty®: Vanguard Call of Duty®: Vanguard includes a deeply engaging single player Campaign, a massive Multiplayer offering featuring over 20 maps including 16 built for core Multiplayer and an exciting new Zombies experience developed by Treyarch.

Similarity 65%
Price -60% 23.99€
Rating 6.5
Release 08 Mar 2023
Overload A new six-degree-of-freedom shooter with intuitive controls, amazing lighting and graphics. From the creators of Descent, Overload is the best zero-gravity robot-blasting combat ever.

Similarity 65%
Price -98% 0.51€
Rating 9.0
Release 31 May 2018
The Apogee Throwback Pack The Apogee Throwback Pack is a collection of four classic Apogee Software titles all in one kick ass package. Blast your way across the galaxy as British Special Agent Blake Stone in "Aliens of Gold" and "Planet Strike", then take on an ancient evil menace as the H.U.N.T in "Rise of the Triad".

Similarity 65%
Price 9.99€
Rating 8.3
Release 01 Jul 2013
Quake III Arena The greatest warriors of all time and space have been summoned to battle for the amusement of an ancient alien race. Wield a variety of guns and power-ups as you fight for glory against ruthless combatants in this fast-paced single-player and multiplayer FPS.

Similarity 64%
Price -60% 5.99€
Rating 9.2
Release 03 Aug 2007
Hostile Waters: Antaeus Rising In 2032 an Earth that knows only peace is forced to relearn the art of war. Twenty years have passed since the population of Earth did a fine job of destroying nearly everything in one final struggle for power by the politicians and military leaders.

Similarity 64%
Price -91% 0.28€
Rating 7.2
Release 30 Jan 2014
Call of Juarez Call of Juarez is an epic adventure western themed FPS game. The player alternately assumes the roles of two distinct, antagonistic characters: a sneaking fugitive Billy and his hunter the reverend Ray.

Similarity 64%
Price -95% 0.51€
Rating 7.8
Release 08 Nov 2007
STAR WARS™ Jedi Knight - Jedi Academy™ Forge your weapon and follow the path of the Jedi Jedi Knight: Jedi Academy is the latest installment of the highly acclaimed Jedi Knight series. Take on the role of a new student eager to learn the ways of the Force from Jedi Master Luke Skywalker.

Similarity 64%
Price 9.75€
Rating 9.3
Release 16 Sep 2009
Medal of Honor™ Fight Today's War: Elite Special Forces in a gritty combat campaign using the surgical tactics of Tier 1 Operators combined with the sledgehammer force of Army Rangers.

Similarity 64%
Price 19.99€
Rating 7.4
Release 12 Oct 2010
F.E.A.R. Experience the original F.E.A.R. along with F.E.A.R. Extraction Point and F.E.A.R. Perseus Mandate.

Similarity 64%
Price -90% 0.98€
Rating 9.1
Release 21 May 2010
Tom Clancy's Rainbow Six® Vegas Tom Clancy's Rainbow Six makes its next-generation hardware debut in the most dramatic installment of the renowned first-person shooter franchise to date. Rainbow operatives take to the chaotic streets of Las Vegas as an escalating terrorist siege in 'Sin City' threatens to take world terrorism to new, uncontrollable heights.

Similarity 64%
Price 9.99€
Rating 7.6
Release 09 Apr 2008
Hexen: Beyond Heretic While the Sidhe elf Corvus battled the evil forces of D'Sparil, the remaining Serpent Riders were busy corrupting other dimensions. As a Warrior, Mage, or Cleric, you must defend your realm of Cronos from the second Serpent Rider known as Korax.

Similarity 64%
Price 4.99€
Rating 8.1
Release 03 Aug 2007
Call of Duty® 2 Call of Duty® 2 redefines the cinematic intensity and chaos of battle as seen through the eyes of ordinary soldiers fighting together in epic WWII conflicts. The sequel to 2003's Call of Duty, winner of over 80 Game of the Year awards, Call of Duty 2 offers more immense, more intense, more realistic battles than ever before, thanks to...

Similarity 64%
Price -25% 14.99€
Rating 9.1
Release 13 Oct 2006
Team Fortress Classic 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. Each character class possesses unique weapons, items, and abilities, as teams compete online in a variety of game play modes.

Similarity 64%
Price 4.99€
Rating 8.5
Release 01 Apr 1999
A.W.O.L. A.W.O.L. is a first-person, mil-spec shooter developed using the Build engine (Duke Nukem 3D, Ion Fury).

Similarity 64%
Price Free to play
Rating 7.6
Release 15 Sep 2022
Frontlines™: Fuel of War™ Frontlines™: Fuel of War™ is an open-world First Person Shooter set on the frontlines of tomorrow. In a world ravaged by a global energy crisis, environmental decay, and economic depression, players assume the role of an elite soldier in the Western Coalition Army on an epic crusade against the Red Star Alliance to control the last of...

Similarity 64%
Price -75% 2.49€
Rating 6.6
Release 29 Feb 2008
Counter-Strike Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team's success. Your team's success affects your role.

Similarity 64%
Price 8.19€
Rating 9.6
Release 01 Nov 2000
Deadfall Adventures Deadfall Adventures is an action-driven first-person shooter, spiced up with elements from action-adventure games. Become an adventurer, hunt for treasures, explore unknown regions of the world and rescue the damsel in distress from the clutches of enemies, both earthly and not-so-earthly.

Similarity 64%
Price -93% 1.43€
Rating 7.1
Release 15 Nov 2013
Homefront The Rock Map Pack is Now Available! Join the Resistance, stand united and fight for freedom against an overwhelming military force.

Similarity 64%
Price -96% 0.96€
Rating 6.0
Release 14 Mar 2011