Computed from player tags · Not ranked by quality
24 games like Half-Life: Opposing Force (2026)
Every game below overlaps with Half-Life: Opposing Force on things players said about it rather than on our opinion of what feels alike. Each entry shows what it matched on, so you can throw out the ones matching on the part you did not care about.
The short version
- Closest match: Half-Life: Blue Shift, which made by the same studio, Gearbox Software.
- Half-Life: Opposing Force is tagged FPS, Action, Classic, Sci-fi, Singleplayer, Shooter, First-Person, Aliens by Steam players. Those tags are what the matching runs on.
- 24 games qualify, each with at least fifty player reviews behind its sentiment figure.
- 2 are from the same studio: Half-Life: Blue Shift, Brothers in Arms: Road to Hill 30.
How these were matched
Steam tags carry the most weight, because players apply them and they describe how a game feels rather than how it was filed. Souls-like, Atmospheric and Cozy exist as tags and as nothing else, which is exactly the vocabulary this question needs. Formal genres count for less, themes and a shared studio for more.
Tags carried by more than a third of the catalogue are thrown out before matching. Nearly everything is tagged Singleplayer, so matching on it is matching on nothing. That cutoff is computed from the catalogue rather than fixed, so it moves as the catalogue grows.
All 24, closest first
- 1
Half-Life: Blue Shift
Why it matched: made by the same studio, Gearbox Software; both science fiction, story-rich, atmospheric and puzzle; shares 13 player tags including FPS, Sci-fi and Shooter; released around the same time (2001).
Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard sidekick who helped Gordon out of so many sticky situations.
Half-Life: Blue Shift at a glance Released 2001 Studio Gearbox Software Player sentiment 93% positive of 21,191 Price $4.99 FPSSci-fiShooterAliensClassicFirst-Person1990'sSilent Protagonist
- 2
Half-Life
Why it matched: both science fiction, story-rich and atmospheric; shares 12 player tags including FPS, Classic and 1990's; released around the same time (1998).
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
Half-Life at a glance Released 1998 Studio Not recorded Player sentiment 96% positive of 163,786 Price $9.99 FPSClassic1990'sSci-fiShooterFirst-PersonAliensStory Rich
- 3
Half-Life 2
Why it matched: both science fiction, story-rich, atmospheric and puzzle; shares 11 player tags including FPS, Sci-fi and Classic.
Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.
Half-Life 2 at a glance Released 2004 Studio Not recorded Player sentiment 98% positive of 278,618 Price $9.99 FPSSci-fiClassicStory RichShooterFirst-PersonSilent ProtagonistAliens
- 4
Half-Life: Source
Why it matched: both science fiction, story-rich and atmospheric; shares 12 player tags including FPS, Classic and Sci-fi.
Winner of over 50 Game of the Year awards, Half-Life set new standards for action games when it was released in 1998. Half-Life: Source is a digitally remastered version of the critically acclaimed and best selling PC game, enhanced via Source technology to include physics simulation, enhanced effects, and more.
Half-Life: Source at a glance Released 2004 Studio Valve Player sentiment 69% positive of 16,699 Price $9.99 FPSClassicSci-fiFirst-PersonShooterAliens1990'sStory Rich
- 5
Quake
Why it matched: both science fiction and atmospheric; shares 10 player tags including FPS, Classic and Shooter; released around the same time (1996).
Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.
Quake at a glance Released 1996 Studio Nightdive Studios Player sentiment 96% positive of 16,302 Price $9.99 FPSClassicShooter1990'sFirst-PersonGoreRetroGreat Soundtrack
- 6
Quake II
Why it matched: both science fiction and atmospheric; shares 10 player tags including FPS, Classic and Shooter; released around the same time (1997).
You are humanity’s last hope to stop the Strogg, a hostile alien race waging war against Earth. Play this military sci-fi FPS, now upgraded for modern platforms with improved visuals, new campaign content, online multiplayer/co-op, and more.
Quake II at a glance Released 1997 Studio Not recorded Player sentiment 95% positive of 10,370 Price $9.99 FPSClassicShooter1990'sSci-fiGreat SoundtrackGoreFirst-Person
- 7
Black Mesa
Why it matched: both science fiction, story-rich and atmospheric; shares 9 player tags including FPS, Sci-fi and First-Person.
Relive Half-Life.
Black Mesa at a glance Released 2020 Studio Crowbar Collective Player sentiment 95% positive of 144,554 Price $19.99 FPSSci-fiFirst-PersonShooterClassicStory RichGreat SoundtrackAliens
- 8
Brothers in Arms: Road to Hill 30
Why it matched: made by the same studio, Gearbox Software; both war, story-rich and atmospheric; shares 7 player tags including FPS, Shooter and First-Person.
Based on a true story. Set during the famous airdrop before the invasion at Normandy, where Sgt. Matt Baker and his squad of 101st Airborne Paratroopers were scattered over the French countryside.
Brothers in Arms: Road to Hill 30 at a glance Released 2005 Studio Gearbox Software Player sentiment 88% positive of 2,173 Price $9.99 FPSShooterFirst-PersonMilitaryStory RichClassicGore
- 9
Deus Ex
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including Classic, FPS and Sci-fi; released around the same time (2000).
The year is 2052. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider. Worst of all, an ages old conspiracy bent on world domination has decided that the time is right to emerge from the shadows and take control.
Deus Ex at a glance Released 2000 Studio Ion Storm Player sentiment 95% positive of 15,619 Price $6.99 ClassicFPSSci-fiStory RichGreat SoundtrackFirst-PersonModdableShooter
- 10
Star Wars Jedi Knight II: Jedi Outcast
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including Classic, Sci-fi and FPS; released around the same time (2002).
The Legacy of Star Wars Dark Forces™ and Star Wars® Jedi Knight lives on in the intense first-person action of Jedi Outcast.
Star Wars Jedi Knight II: Jedi Outcast at a glance Released 2002 Studio Raven Software Player sentiment 91% positive of 4,951 Price $9.99 ClassicSci-fiFPSShooterStory RichFirst-PersonGreat SoundtrackModdable
- 11
Wolfenstein: The New Order
Why it matched: both science fiction, war, story-rich and atmospheric; shares 7 player tags including FPS, Shooter and Gore.
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.
Wolfenstein: The New Order at a glance Released 2014 Studio Not recorded Player sentiment 92% positive of 62,216 Price $19.99 FPSShooterGoreFirst-PersonStory RichSci-fiGreat Soundtrack
- 12
Wolfenstein II: The New Colossus
Why it matched: both science fiction, war, story-rich and atmospheric; shares 7 player tags including FPS, Gore and First-Person.
America, 1961. The assassination of Nazi General Deathshead was a short-lived victory. The Nazis maintain their stranglehold on the world. You are BJ Blazkowicz, aka “Terror-Billy,” member of the Resistance, scourge of the Nazi empire, and humanity’s last hope for liberty.
Wolfenstein II: The New Colossus at a glance Released 2017 Studio Not recorded Player sentiment 81% positive of 49,468 Price $39.99 FPSGoreFirst-PersonShooterStory RichSci-fiGreat Soundtrack
- 13
Doom 64
Why it matched: both science fiction and atmospheric; shares 9 player tags including FPS, Classic and 1990's; released around the same time (1997).
Play the enhanced version of the original game released on the Nintendo 64 in 1997. Years have passed since you stopped Hell’s invasion of Earth. Quarantined for humanity’s safety, the UAC research facilities on Mars were abandoned and forgotten...until now.
Doom 64 at a glance Released 1997 Studio Midway Games Player sentiment 93% positive of 8,793 Price $4.99 FPSClassic1990'sRetroGoreShooterFirst-PersonSci-fi
- 14
Half-Life: Alyx
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including FPS, Story Rich and Shooter.
Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life and Half-Life 2. Playing as Alyx Vance, you are humanity’s only chance for survival.
Half-Life: Alyx at a glance Released 2020 Studio Campo Santo Player sentiment 98% positive of 105,097 Price $59.99 FPSStory RichShooterFirst-PersonSci-fiAliensGreat SoundtrackGore
- 15
F.E.A.R.
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including FPS, Classic and Shooter.
Experience the original F.E.A.R. along with F.E.A.R. Extraction Point and F.E.A.R. Perseus Mandate.
F.E.A.R. at a glance Released 2005 Studio Monolith Productions Player sentiment 94% positive of 19,502 Price $9.99 FPSClassicShooterGoreFirst-PersonStory RichSci-fiGreat Soundtrack
- 16
Halo Wars
Why it matched: both science fiction, war, story-rich and atmospheric; shares 7 player tags including Sci-fi, Military and Great Soundtrack.
Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.
Halo Wars at a glance Released 2009 Studio Not recorded Player sentiment 91% positive of 9,517 Price $19.99 Sci-fiMilitaryGreat SoundtrackAliensClassicStory RichShooter
- 17
Crysis Warhead
Why it matched: both science fiction, war, story-rich and atmospheric; shares 7 player tags including FPS, Sci-fi and Shooter.
Pulse-racing new installment from 2007's PC Game of the Year*: Play as Sergeant Sykes and experience a whole new side of the battle. A standard combat mission behind enemy lines becomes critical when you discover your enemies have captured something of vital importance to the ensuing war.
Crysis Warhead at a glance Released 2008 Studio Crytek Player sentiment 85% positive of 4,101 Price $19.99 FPSSci-fiShooterAliensFirst-PersonMilitaryStory Rich
- 18
Turok 2: Seeds of Evil
Why it matched: both science fiction; shares 10 player tags including FPS, Classic and Gore; released around the same time (1998).
Having defeated the Campaigner, Turok throws the Chronocepter into a waiting volcano to destroy it. Unfortunately the blast awakens an even deadlier force - The Primagen. Once again a Turok is tasked with restoring peace to the land and stopping the Primagen from merging Earth with the nether world.
Turok 2: Seeds of Evil at a glance Released 1998 Studio Acclaim Studios Austin Player sentiment 90% positive of 2,835 Price $19.99 FPSClassicGoreSci-fi1990'sShooterGreat SoundtrackFirst-Person
- 19
Deus Ex: Game of the Year Edition
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including Classic, FPS and Sci-fi.
The year is 2052. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider. Worst of all, an ages old conspiracy bent on world domination has decided that the time is right to emerge from the shadows and take control.
Deus Ex: Game of the Year Edition at a glance Released 2007 Studio Ion Storm Player sentiment 95% positive of 15,619 Price $6.99 ClassicFPSSci-fiStory RichGreat SoundtrackFirst-PersonModdableShooter
- 20
Call of Duty 4: Modern Warfare (2007)
Why it matched: both war, story-rich and atmospheric; shares 8 player tags including FPS, Shooter and First-Person.
The new action-thriller from the award-winning team at Infinity Ward, the creators of the Call of Duty® series, delivers the most intense and cinematic action experience ever. Call of Duty 4: Modern Warfare arms gamers with an arsenal of advanced and powerful modern day firepower and transports them to the most treacherous hotspots...
Call of Duty 4: Modern Warfare (2007) at a glance Released 2007 Studio Infinity Ward Player sentiment 94% positive of 27,089 Price $19.99 FPSShooterFirst-PersonClassicMilitaryStory RichGreat SoundtrackModdable
- 21
Return to Castle Wolfenstein
Why it matched: both science fiction, war and atmospheric; shares 8 player tags including FPS, Classic and Shooter.
World War II rages and nations fall. The Nazis are twisting science and the occult into an army capable of annihilating the Allies once and for all. As US Army Ranger William “B.J.” Blazkowicz, pierce the black heart of the Third Reich and stop them...or die trying.
Return to Castle Wolfenstein at a glance Released 2007 Studio Gray Matter Studios Player sentiment 93% positive of 9,299 Price $4.99 FPSClassicShooterFirst-PersonGoreSci-fiRetroGreat Soundtrack
- 22
Halo: The Master Chief Collection
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including Great Soundtrack, FPS and Classic.
The Master Chief’s iconic journey includes six games, built for PC and collected in a single integrated experience. Whether you’re a long-time fan or meeting Spartan 117 for the first time, The Master Chief Collection is the definitive Halo gaming experience.
Halo: The Master Chief Collection at a glance Released 2019 Studio 343 Industries Player sentiment 92% positive of 262,222 Price $39.99 Great SoundtrackFPSClassicStory RichSci-fiFirst-PersonShooterAliens
- 23
STAR WARS Jedi Knight II - Jedi Outcast
Why it matched: both science fiction, story-rich and atmospheric; shares 8 player tags including Classic, Sci-fi and FPS.
The Legacy of Star Wars Dark Forces™ and Star Wars® Jedi Knight lives on in the intense first-person action of Jedi Outcast.
STAR WARS Jedi Knight II - Jedi Outcast at a glance Released 2009 Studio Raven Software Player sentiment 91% positive of 4,951 Price $9.99 ClassicSci-fiFPSShooterStory RichFirst-PersonGreat SoundtrackModdable
- 24
Quake 4
Why it matched: both science fiction and atmospheric; shares 9 player tags including FPS, Shooter and Sci-fi.
As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.
Quake 4 at a glance Released 2005 Studio Raven Software Player sentiment 88% positive of 3,977 Price $14.99 FPSShooterSci-fiGoreClassicFirst-PersonAliensRetro
Common questions
What game is most like Half-Life: Opposing Force?
Half-Life: Blue Shift, on the evidence we have. It made by the same studio, Gearbox Software. That is a statement about overlap, not a promise you will like it as much: two games can share every tag and still feel different to play.
How is "similar to Half-Life: Opposing Force" decided?
By overlap on the tags Steam players applied to each game, the formal genres, the themes both sit in, and whether the same studio made them. Tags carry the most weight because players write them, so they describe how a game feels rather than how it was filed. Tags carried by more than a third of the catalogue are ignored: matching on "Singleplayer" is matching on nothing. Every entry below shows exactly what it matched on.
Are these ranked by quality?
No. They are ordered by how much they overlap with Half-Life: Opposing Force. Where two games overlap equally, the better received one goes first, but that only moves a game a place or two. Each entry shows its own player sentiment so you can weigh that separately.
What else did the makers of Half-Life: Opposing Force do?
Half-Life: Blue Shift, Brothers in Arms: Road to Hill 30 are also from Gearbox Software, and appear in the list below for that reason as well as on tag overlap.
Do you get paid for these recommendations?
No. The order is computed from tag and genre overlap and nothing else. No placement here can be bought, and a game appearing high on this page is a statement about resemblance rather than an endorsement.