Half-Life: Opposing Force

23 Games with a sci-fi setting like Half-Life: Opposing Force that you should try

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We filtered the 50 games similar to Half-Life: Opposing Force down to the 23 that fit the “Sci-Fi” category. Half-Life, Black Mesa and Half-Life: Source top the list, ranked by affinity and similarity score to Half-Life: Opposing Force.

iRank84/ 100

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GenreShooterSubgenreFPSSub-subgenreTactical FPS

Tags

NarrativeDarkSoloMultiplayer

Year 1999Dev Gearbox Software

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Quick answer

Within the “Sci-Fi” category, the closest game to Half-Life: Opposing Force is Half-Life — scoring 98/100 on our similarity scale. Black Mesa and Half-Life: Source follow close behind.

#1Half-Life98 #2Black Mesa97 #3Half-Life: Source96 #4NecroVision95 #5Return to Castle Wolfenstein93

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The best games with a sci-fi setting like Half-Life: Opposing Force

23 similar games foundUpdated July 2026

Handpicked by our similarity algorithm, these are the titles with the highest gameplay match to Half-Life: Opposing Force. Each one has been evaluated across 16 real attributes — from combat style and progression mechanics to world structure and visual perspective — so every recommendation is based on how the game actually plays, not just its genre label.

98

Half-Life

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerPvPRangedMeleeTacticalNarrativeDarkSci-FiHorrorFirst Person

Steam👍 97%· 161KRAWG👍 89%· 2.4KMC96IGDB80· 1

Year 1998Dev Valve Software · ValvePlaytime ~3hOn PC · PS · Apple Macintosh

✓ Same family of tactical first-person shooters: shooter, first-person shooting and adventure storytelling

≠ Its own twist: punishing difficulty, while skipping precision platforming

97

Black Mesa

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerRangedMeleeTacticalNarrativeDarkSci-FiHorrorFirst Person

Steam👍 95%· 142KRAWG👍 90%· 1.1KMC86IGDB88· 3OC85· 16

Year 2020Dev Crowbar CollectivePlaytime ~6hOn PC · Linux

✓ Same family of tactical first-person shooters: shooter, first-person shooting and adventure storytelling

≠ Its own twist: horror tension and early access, while skipping puzzle design

#3Half-Life: Source

96

Half-Life: Source

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerRangedMeleeTacticalNarrativeDarkHorrorSci-FiFirst Person

Steam👍 69%· 17KRAWG👍 72%· 557

Year 2004Dev Valve Software · ValvePlaytime ~1hOn PC · Apple Macintosh · Linux

✓ Both are tactical first-person shooters — sharing shooter, first-person shooting and adventure storytelling

≠ Where it differs: brings horror tension, while skipping PvP competition

95

NecroVision

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerMeleeRangedTacticalDarkNarrativeHorrorSci-FiFirst Person

Steam👍 68%· 1.9KRAWG👍 44%· 89MC63IGDB60· 1

Year 2009Dev The Farm 51 · 1C-SoftClubPlaytime ~1hOn PC

✓ Same family of tactical first-person shooters: shooter, first-person shooting and dark, oppressive atmosphere

≠ Its own twist: horror tension, fantasy world and historical setting, while skipping puzzle design

#5Return to Castle Wolfenstein

93

Return to Castle Wolfenstein

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerRangedMeleeTacticalDarkNarrativeHorrorSci-FiFirst Person

Steam👍 93%· 9.1KRAWG👍 90%· 467MC88IGDB68· 5

Year 2001Dev Nerve Software · Bethesda SoftworksPlaytime ~1hOn PC · PS · Apple Macintosh

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and adventure storytelling

≠ Stands apart with horror tension, stealth mechanics and historical setting, while skipping puzzle design

#6Half-Life: Blue Shift

90

Half-Life: Blue Shift

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloRangedMeleeTacticalDarkNarrativeSci-FiHorrorFirst Person

Steam👍 93%· 21KRAWG👍 74%· 764MC71IGDB60· 1

Year 2001Dev Gearbox Software · ValvePlaytime ~2hOn PC · Apple Macintosh · Linux

✓ Nearly identical: shooter, first-person shooting and puzzle design.

≠ Missing: multiplayer gameplay.

90

DOOM II

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerTacticalRangedMeleeDarkHorrorSci-FiFirst Person

Year 2020Dev ELDRAZI-17On PC

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and dark, oppressive atmosphere

≠ Its own twist: deep RPG systems, setting space and co op, while skipping puzzle design

90

Doom Eternal

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerMeleeTacticalDarkNarrativeHorrorSci-FiFirst Person

Steam👍 91%· 215KIGDB86· 14OC89· 211

Year 2020Dev id Software · Bethesda SoftworksOn Xbox · PS4 · PC

✓ Both are tactical first-person shooters — sharing shooter, first-person shooting and adventure storytelling

≠ Its own twist: horror tension, punishing difficulty and fantasy world, while skipping puzzle design

#9Wolfenstein: The Old Blood

89

Wolfenstein: The Old Blood

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerMeleeTacticalDarkNarrativeHorrorSci-FiFirst Person

Steam👍 90%· 23KIGDB76· 15OC78· 84

Year 2015Dev MachineGames · Bethesda SoftworksOn PS4 · PC · Xbox

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and adventure storytelling

≠ Stands apart with horror tension, stealth mechanics and historical setting, while skipping puzzle design

87

Halo 3

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerPvPTacticalMeleeDarkSci-FiHorrorFirst Person

Steam👍 91%· 3.0KIGDB91· 4

Year 2007Dev Bungie · Microsoft Game StudiosOn PC · Xbox

✓ Same family of tactical first-person shooters: shooter, first-person shooting and dark, oppressive atmosphere

≠ Stands apart with sandbox freedom, sandbox world and offline, while skipping puzzle design

#11Call of Duty: Black Ops II

86

Call of Duty: Black Ops II

GenreShooterSubgenreFPSSub-subgenreTactical FPS

MultiplayerSoloMeleeTacticalNarrativeDarkSci-FiHorrorFirst Person

Steam👍 86%· 49KIGDB79· 17

Year 2012Dev Treyarch · ActivisionOn PlayStation 3 · PC

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and adventure storytelling

≠ Where it differs: brings survival mechanics, horror tension and historical setting, while skipping puzzle design

#12Ace Combat 7: Skies Unknown

91

Ace Combat 7: Skies Unknown

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerPvPTacticalMeleeNarrativeSci-FiFirst Person

Steam👍 88%· 55KIGDB81· 12OC81· 130

Year 2019Dev Project Aces · Bandai Namco EntertainmentOn PS4 · PC · Xbox

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and strong narrative focus

≠ Its own twist: deep simulation, historical setting and visual third person, while skipping puzzle design

#13STAR WARS™ Republic Commando™

90

STAR WARS™ Republic Commando™

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerMeleeRangedTacticalNarrativeSci-FiFirst Person

Steam👍 96%· 17KRAWG👍 88%· 530MC78IGDB81· 5OC70· 23

Year 2005Dev LucasArts Entertainment · Disney InteractivePlaytime ~1hOn PC · PS · Xbox

✓ Fits the tactical first-person shooters cluster, with shooter, first-person shooting and adventure storytelling

≠ Stands apart with setting space, historical setting and co op, while skipping puzzle design

88

Killzone 2

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerTacticalSci-FiFirst Person

IGDB90· 8

Year 2009Dev Guerrilla Games · Sony Computer EntertainmentOn PlayStation 3

✓ Nearly identical: shooter, first-person shooting and combat tactical.

≠ Missing: puzzle design.

#15Perfect Dark Zero

88

Perfect Dark Zero

GenreShooterSubgenreFPSSub-subgenreTactical FPS

SoloMultiplayerTacticalNarrativeDarkSci-FiFirst Person

IGDB72· 3

Year 2005Dev Rare · Microsoft Game Studios

✓ Same family of tactical first-person shooters: shooter, first-person shooting and strong narrative focus

≠ Where it differs: brings stealth mechanics, while skipping puzzle design

Complete list of games with a sci-fi setting like Half-Life: Opposing Force

The full catalog of games sharing gameplay DNA with Half-Life: Opposing Force, ordered from highest to lowest similarity score. Use the filters above to narrow down by genre, setting or game mode and find the alternative that best fits your playstyle.

Killzone: Shadow Fall

Killzone: Shadow Fall

Shooter · FPS

Titanfall 2

Titanfall 2

Shooter · FPS

Brink

Brink

Shooter · FPS

Star Wars: Squadrons

Star Wars: Squadrons

Shooter · FPS

Halo 5: Guardians

Halo 5: Guardians

Shooter · FPS

Transformers: War for Cybertron

Transformers: War for Cybertron

Shooter · FPS

Halo 2

Halo 2

Shooter · FPS

Star Wars Battlefront II

Star Wars Battlefront II

Shooter · FPS

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Rankings in the same genre

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