Games like Half-Life: Opposing Force on Steam

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Halo Infinite From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience.

Similarity 58%
Price Free to play
Rating 6.9
Release 15 Nov 2021
METAL EDEN An adrenaline-rush sci-fi FPS. A HYPER UNIT ASKA is sent on a suicide mission to rescue citizens' COREs from MOEBIUS, an orbital city turned into a deadly trap. Dive into cybernetic warfare, face the ENGINEERS, and uncover the secrets of METAL EDEN.

Similarity 58%
Price -62% 7.70€
Rating 8.2
Release 02 Sep 2025
Indiana Jones® and the Emperor's Tomb™ As Indiana Jones, you’ll travel to 1935 China to prevent a powerful artifact from falling into evil hands. This globe-spanning adventure pits you against evil Nazis and the Asian underworld. It’ll take more than just a trusty whip and pistol to avoid the perils of the Emperor’s Tomb.

Similarity 57%
Price -95% 0.30€
Rating 8.7
Release 16 Nov 2018
Havoc Havoc is an arcade tactical first-person shooter with semi-destructible environments. It offers a variety of game modes, including Bomb Defusal, Team Deathmatch, Free for All, and Gun Game, along with extensive options to customize lobby settings to your preferences.

Similarity 57%
Price Free to play
Rating 6.4
Release 22 Jul 2024
Battlefield 3™ Enjoy total freedom to fight the way you want. Explore 29 massive multiplayer maps and use loads of vehicles, weapons, and gadgets to help you turn up the heat. Every second of battle gets you closer to unlocking tons of extras and moving up in the Ranks. So get in the action.

Similarity 57%
Price 39.99€
Rating 6.9
Release 11 Jun 2020
Ravenfield Fight upon the Ravenfield together with your Blue allies! Take down those pesky Reds using helicopters, tanks, guns, and active ragdoll physics!

Similarity 57%
Price 17.49€
Rating 9.5
Release 18 May 2017
Bright Memory Bright Memory is a lightning-fast fusion of the FPS and action genres, created by one-man development studio FYQD using Unreal Engine. Combine a wide variety of skills and abilities to unleash dazzling combo attacks.

Similarity 57%
Price 6.59€
Rating 8.9
Release 25 Mar 2020
Immortals of Aveum™ Immortals of Aveum is a single-player first person magic shooter that tells the story of Jak as he joins an elite order of battlemages to save a world on the edge of abyss.

Similarity 57%
Price -90% 5.99€
Rating 6.9
Release 21 Aug 2023
Indiana Jones® and the Infernal Machine™ The year is 1947. The Nazis have been crushed, the Cold War has begun and Soviet agents are sniffing around the ruins of the fabled Tower of Babel. What are they up to? The CIA recruits renowned archeologist and adventurer, Dr. Henry "Indiana" Jones, to find out.

Similarity 57%
Price -92% 0.48€
Rating 7.7
Release 16 Nov 2018
STAR WARS™: Dark Forces Remaster The evil Empire is currently creating a doomsday army behind a veil of secrecy. However, they are no match for the Rebel Alliance's covert operations division. Your mission is to infiltrate the Empire and put an end to their plans for terror and domination.

Similarity 57%
Price 28.99€
Rating 8.6
Release 28 Feb 2024
VLADiK BRUTAL Fight under the onslaught of mutated monsters, obsessed soldiers and even darker bosses. Just try to survive and find out what to do next in this life, simultaneously tearing your enemies to pieces.

Similarity 57%
Price -73% 3.22€
Rating 8.8
Release 09 Aug 2024
Starship Troopers: Extermination Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!

Similarity 57%
Price -92% 2.57€
Rating 7.9
Release 10 Oct 2024
Call of Duty®: Black Ops II Pushing the boundaries of what fans have come to expect from the record-setting entertainment franchise, Call of Duty®: Black Ops II propels players into a near future Cold War

Similarity 57%
Price 59.99€
Rating 8.5
Release 12 Nov 2012
Serious Sam HD: The Second Encounter Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!

Similarity 57%
Price -87% 2.78€
Rating 8.6
Release 28 Apr 2010
Darkenstein 3D A retro shooter inspired by classics like Wolfenstein and Doom. Think of it as a tribute, a love letter to the games that defined a generation, with a few modern touches of my own. It’s tough, fast, and demands skill, just the way those old-school shooters did.

Similarity 57%
Price Free to play
Rating 8.6
Release 21 Oct 2025
Shadowgrounds Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...

Similarity 57%
Price -85% 0.74€
Rating 7.8
Release 08 May 2006
Hubris Hubris is a VR action-adventure game set in a unique and colourful Sci-Fi universe, with immersive movement options, including swimming, climbing, and jumping. Players will have to gather resources, craft food and upgrade their weapons to fight off alien wildlife, droids, and humanoid enemies.

Similarity 56%
Price 29.99€
Rating 7.2
Release 07 Dec 2022
Outcast 1.1 Outcast 1.1 is an enhanced version of the critically acclaimed action-adventure game developed in 1999 by Appeal for the PC.

Similarity 56%
Price -83% 0.90€
Rating 8.3
Release 18 Dec 2014
MechWarrior 5: Clans In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.

Similarity 56%
Price -58% 12.26€
Rating 7.3
Release 16 Oct 2024
Battlefield™ Hardline Strategy. Speed. Story. These are the core pillars of Battlefield™ Hardline, a cops vs. criminals experience unlike any other.

Similarity 56%
Price 39.99€
Rating 6.7
Release 11 Jun 2020
Space Hulk: Deathwing Enhanced Edition Space Hulk: Deathwing - Enhanced Edition is a First-Person Shooter based on Games Workshop’s cult classic board game set in Warhammer 40,000 universe. Expanding upon the original game, and featuring a host of new content, new features and a richer multiplayer mode.

Similarity 56%
Price -92% 2.50€
Rating 7.1
Release 22 May 2018
Crysis 2 Remastered Relive the legendary single-player campaign from the classic first-person shooter, Crysis 2, optimized for today's hardware in Crysis 2 Remastered.

Similarity 56%
Price -86% 4.49€
Rating 8.6
Release 17 Nov 2022
Painkiller Hell & Damnation Evil has returned! Demonic powers are manifesting themselves as a myriad of dark creatures, fighting over the fates of imprisoned souls caught in Purgatory.

Similarity 56%
Price -92% 1.72€
Rating 7.6
Release 31 Oct 2012
Battlefield 4™ Embrace unrivaled destruction in Battlefield 4™. Revel in the glorious chaos of all-out war packed with rewarding, tactical challenges in an interactive environment.

Similarity 56%
Price -95% 1.99€
Rating 8.4
Release 11 Jun 2020
Serious Sam HD: The First Encounter Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!

Similarity 56%
Price -86% 2.21€
Rating 9.1
Release 24 Nov 2009
KovaaK's Master your aim with KovaaK’s, the world’s best aim trainer. With over 200,000 scenarios, playlists and more! Embrace total customization, including a map editor and game physics. More than just a trainer, it’s a dynamic, community-driven platform that elevates your gameplay.

Similarity 56%
Price -70% 2.47€
Rating 9.1
Release 03 Apr 2018
F.E.A.R. 3 F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline.

Similarity 56%
Price -95% 1.09€
Rating 7.0
Release 21 Jun 2011
Project Pulsation Project Pulsation - a sci-fi first person shooter with elements of horror and stealth. The distant space station 'Complex' located nearby Thanatos Asteroid keeps a valuable Artifact. Fight your way through turrets, unknown creatures and mysterious ghosts, survive and try to get back.

Similarity 56%
Price -85% 0.78€
Rating 6.7
Release 15 Dec 2015
BioShock™ Remastered BioShock is a shooter unlike any other, loaded with unique weapons and tactics. Complete with an arsenal of revolvers, shotguns, and grenade launchers, players will be forced to genetically modify their DNA to become an even deadlier weapon.

Similarity 55%
Price -78% 4.45€
Rating 8.1
Release 15 Sep 2016
Call of Duty®: Ghosts Outnumbered and outgunned, but not outmatched.Call of Duty®: Ghosts is an extraordinary step forward for one of the largest entertainment franchises of all-time. This new chapter in the Call of Duty® franchise features a new dynamic where players are on the side of a crippled nation fighting not for freedom, or liberty, but simply to...

Similarity 55%
Price 59.99€
Rating 6.4
Release 25 Mar 2014
ShootMania Storm ShootMania the FPS “Powered By Players”ShootMania Storm is revolutionizing the multiplayer FPS by adding a community dimension and unlimited replayability. Developed by the Nadeo studio, renowned for community racing game, TrackMania, ShootMania Storm boasts quick-fire matches and epic battles, where only your talent will distinguish you...

Similarity 55%
Price -98% 0.52€
Rating 8.1
Release 10 Apr 2013
Nirvana Wake up and embrace your new powers. In this Bullet Hell Fast-FPS, dare to take on mystical creatures to defeat the God Raj. Nirvana awaits...

Similarity 55%
Price Free to play
Rating 8.8
Release 01 Feb 2025
Call of Duty®: Black Ops The biggest first-person action series of all time and the follow-up to critically acclaimed Call of Duty®: Modern Warfare 2 returns with Call of Duty®: Black Ops.

Similarity 55%
Price 39.99€
Rating 8.9
Release 08 Nov 2010
TOXIKK™ FRAG LIKE IT'S 1999! TOXIKK plays as if today's military shooters never existed: Designed as a spiritual successor to the FPS giants of the late 90s and early 2ks, TOXIKK carefully evolves their mechanics with modern technology and fresh ideas elaborated with Arena-FPS enthusiasts.

Similarity 55%
Price Free to play
Rating 7.5
Release 10 Sep 2016
Shrine II Shrine II is a retro FPS game with a focus on atmosphere and exploration. Explore a nightmarish world and battle great bosses where the surprises never end...

Similarity 55%
Price Free to play
Rating 8.7
Release 22 Sep 2020
Selaco Selaco is a brand new original shooter inspired by classics, featuring thrilling action set pieces, destructibility, smart enemies and a fleshed out story taking place within an immersive game world.

Similarity 55%
Price -74% 6.57€
Rating 8.9
Release 31 May 2024