Species: Unknown

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Ranking compiled by Lluis Enric Mayans, Founder & Head of ContentUpdated May 19, 2026How this is calculatedOrdered by an attribute-similarity model, not editorial opinion.

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We filtered the 49 games similar to Species: Unknown down to the 21 that fit the “Online” category. Left 4 Dead 2, World War Z and Back 4 Blood top the list, ranked by affinity and similarity score to Species: Unknown.

iRank95/ 100

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GenreShooterSubgenreFPS

Tags

DarkSoloMultiplayer

Year 2025Dev WanadevStudio

Stores

Quick answer

Within the “Online” category, the closest game to Species: Unknown is Left 4 Dead 2 — scoring 91/100 on our similarity scale. World War Z and Back 4 Blood follow close behind.

#1Left 4 Dead 291 #2World War Z89 #3Back 4 Blood89 #4Cry of Fear88 #5Left 4 Dead88

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The best online games like Species: Unknown

21 similar games foundUpdated May 2026

Handpicked by our similarity algorithm, these are the titles with the highest gameplay match to Species: Unknown. Each one has been evaluated across 10 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.

#1Left 4 Dead 2Closest overall match

91

Left 4 Dead 2

GenreShooterSubgenreFPS

MultiplayerCo-opSoloOnlineDarkHorrorFirst Person

Steam👍 98%· 1.0MRAWG👍 85%· 3.4KMC89IGDB89· 5

Year 2009Dev Valve Software · Electronic ArtsPlaytime ~9hOn PC · Xbox · Apple Macintosh

✓ Same family of first-person shooters: shooter, first-person shooting and survival mechanics

≠ Stands apart with horror tension, ranged combat and melee combat

Everything the first game did plus melee weapons, daylight campaigns and special infected that force the team apart rather than just damage it. The AI Director still shapes every run. It absorbed the original so completely that the community split never healed, and the campaigns lean on finale set pieces that become rote once you know the safe corners.

It predates Species: Unknown by 16 years, with what that implies technically.

Genre100Game mode100Tone100Setting100Visuals100

89

World War Z

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkHorrorFirst Person

Steam👍 83%· 31KIGDB74· 12OC71· 129

Year 2019Dev Saber Interactive · Focus EntertainmentOn PS4 · PC · Xbox

✓ Both are first-person shooters — sharing shooter, first-person shooting and survival mechanics

≠ Its own twist: third-person shooting, adventure storytelling and horror tension

A co-op horde shooter whose swarm tech is the draw: hundreds of zombies climb over each other into structures, and the class system rewards coordinating rather than scattering. Levels are short and replayable. The shooting itself is functional but unremarkable, and the campaign chapters are thin connective tissue between the set-piece swarm moments.

Genre100Game mode100Tone100Setting70Visuals59

Steam Epic Xbox

89

Back 4 Blood

GenreShooterSubgenreFPS

Co-opSoloMultiplayerOnlineDarkHorrorFirst Person

Steam👍 69%· 73KIGDB79· 10OC76· 138

Year 2021Dev Turtle Rock Studios · Warner Bros. Interactive EntertainmentOn Xbox · PS4 · PC

✓ Same family of first-person shooters: shooter, first-person shooting and survival mechanics

≠ Where it differs: brings horror tension, adventure storytelling and roguelike runs

On reception: its Steam reviews are mixed, against very positive for Species: Unknown.

Genre100Tone100Setting100Visuals100Game mode89

88

Cry of Fear

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkHorrorFirst Person

Steam👍 89%· 84K

Year 2013Dev Team PsykskallarOn PC

✓ Fits the first-person shooters cluster, with shooter, first-person shooting and survival mechanics

≠ Its own twist: horror tension, adventure storytelling and strong narrative focus

It predates Species: Unknown by 12 years, with what that implies technically.

Genre100Game mode100Setting100Visuals100Tone69

88

Left 4 Dead

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkHorrorFirst Person

Steam👍 96%· 67KRAWG👍 87%· 1.7KMC89IGDB85· 7

Year 2008Dev Valve Software · Electronic ArtsPlaytime ~5hOn PC · Xbox · Apple Macintosh

✓ Fits the first-person shooters cluster, with shooter, first-person shooting and survival mechanics

≠ Stands apart with horror tension, strong narrative focus and melee combat

The AI Director is the whole design: it places hordes and items based on how well you are doing, so no two runs of a campaign play the same and tension stays authored without being scripted. Four campaigns only, which is thin, and the sequel superseded it so completely that finding populated servers now takes patience.

It predates Species: Unknown by 17 years, with what that implies technically.

Genre100Game mode100Visuals100Tone81Setting70

#6Killing Floor

87

Killing Floor

GenreShooterSubgenreFPS

Co-opSoloMultiplayerOnlineDarkHorrorFirst Person

Steam👍 95%· 69KRAWG👍 59%· 856MC72IGDB68· 5

Year 2009Dev Tripwire InteractivePlaytime ~5hOn PC · Apple Macintosh · Linux

✓ Both are first-person shooters — sharing shooter, first-person shooting and survival mechanics

≠ Stands apart with horror tension, strong narrative focus and ranged combat

Wave-based co-op against slow, heavy specimens, built around a between-round shop and perks that level by playstyle rather than by menu. Weapon feedback is meaty. It shows its origins as a mod — level design is functional rather than crafted, and later waves come down to holding one corridor while a friend welds the door behind you.

It predates Species: Unknown by 16 years, with what that implies technically.

Genre100Game mode100Visuals85Tone84Setting59

85

Fallout 76

GenreShooterSubgenreFPS

MultiplayerCo-opOnlineSoloDarkHorrorFirst Person

Steam👍 72%· 138KIGDB51· 14OC54· 149

Year 2018Dev Bethesda Game Studios · Bethesda SoftworksOn Xbox · PS4 · PC

✓ Both are first-person shooters — sharing shooter, first-person shooting and survival mechanics

≠ Stands apart with deep RPG systems, horror tension and strong narrative focus

Where it drifts furthest from Species: Unknown: setting.

On reception: its Steam reviews are mostly positive, against very positive for Species: Unknown.

Genre100Game mode100Tone79Visuals71Setting34

#8Aliens: Colonial Marines

84

Aliens: Colonial Marines

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkHorrorFirst Person

Steam👍 62%· 12KIGDB45· 14

Year 2013Dev Gearbox Software · SegaOn PlayStation 3 · PC

✓ Same family of first-person shooters: shooter, first-person shooting and survival mechanics

≠ Its own twist: horror tension, strong narrative focus and melee combat

On reception: its Steam reviews are mixed, against very positive for Species: Unknown.

It predates Species: Unknown by 12 years, with what that implies technically.

Genre100Visuals100Tone88Game mode81Setting51

82

Dead Space 3

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkHorror

Steam👍 73%· 14KIGDB74· 15

Year 2013Dev Visceral Games · Electronic ArtsOn PlayStation 3 · PC · Xbox

✓ Fits the first-person shooters cluster, with shooter, first-person shooting and survival mechanics

≠ Stands apart with horror tension, third-person shooting and puzzle design, while skipping visual first person

Where it drifts furthest from Species: Unknown: visuals.

On reception: its Steam reviews are mostly positive, against very positive for Species: Unknown.

It predates Species: Unknown by 12 years, with what that implies technically.

Genre100Game mode100Tone79Setting50Visuals0

Steam Epic Xbox

#10theHunter Classic

78

theHunter Classic

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineFirst Person

Steam👍 59%· 44KRAWG👍 25%· 117IGDB67· 3

Year 2014Dev Avalanche Studios · Expansive WorldsPlaytime ~1hOn PC

✓ Both are first-person shooters — sharing shooter, first-person shooting and survival mechanics

≠ Stands apart with sports simulation, deep simulation and adventure storytelling, while skipping dark, oppressive atmosphere

A hunting simulator far more patient than its arcade cousins: animals track scent and sound, and a session can be hours of walking before a single shot. That deliberate pace is the entire point. It is also free-to-play with most maps and weapons behind purchases, and the pacing will bore anyone expecting a shooter.

On reception: its Steam reviews are mixed, against very positive for Species: Unknown.

It predates Species: Unknown by 11 years, with what that implies technically.

Genre100Game mode100Visuals100

76

F.E.A.R. 3

GenreShooterSubgenreFPS

Co-opSoloMultiplayerOnlineDarkHorrorFirst Person

Steam👍 71%· 14KIGDB76· 5

Year 2011Dev Day 1 Studios · WB GamesOn PlayStation 3 · PC

✓ Both are first-person shooters — sharing shooter, first-person shooting and dark, oppressive atmosphere

≠ Where it differs: brings horror tension, adventure storytelling and strong narrative focus, while skipping survival mechanics

On reception: its Steam reviews are mostly positive, against very positive for Species: Unknown.

It predates Species: Unknown by 14 years, with what that implies technically.

Genre100Game mode100Visuals100Tone80Setting75

#12theHunter: Call of the Wild™

75

theHunter: Call of the Wild™

GenreShooterSubgenreFPS

MultiplayerCo-opSoloOnlineFirst Person

Steam👍 89%· 197KRAWG👍 62%· 227MC74IGDB74· 5OC68· 26

Year 2017Dev Expansive Worlds · Astragon EntertainmentPlaytime ~4hOn PC · PS · Xbox

✓ Both are first-person shooters — sharing shooter, first-person shooting and survival mechanics

≠ Stands apart with adventure storytelling, sports simulation and deep simulation, while skipping dark, oppressive atmosphere

theHunter: Call of the Wild offers the most immersive hunting experience ever created. Step into a beautiful open world teeming with life, from majestic deer and awe-inspiring bison, down to the countless birds, critters and insects of the wilderness.

Where it drifts furthest from Species: Unknown: tone.

It predates Species: Unknown by 8 years, with what that implies technically.

Genre100Game mode100Visuals100Tone0

Steam Epic Xbox

74

Tower Unite

GenreShooterSubgenreFPS

MultiplayerSoloCo-opOnlineDarkHorrorFirst Person

Steam👍 90%· 22KRAWG👍 69%· 60

Year 2016Dev PixelTail GamesPlaytime ~7hOn PC

✓ Both are first-person shooters — sharing shooter, first-person shooting and dark, oppressive atmosphere

≠ Its own twist: racing gameplay, adventure storytelling and deep simulation, while skipping survival mechanics

Tower Unite is a living, evolving world, fueled by the community. Play online games with your friends or make new friends from around the world! Tower Unite is a large online multiplayer game that spans genres. Play minigames such as Minigolf, Ball Race, Virus, and more!

Where it drifts furthest from Species: Unknown: tone.

It predates Species: Unknown by 9 years, with what that implies technically.

Genre100Game mode100Setting100Visuals51Tone45

#14Serious Sam HD: The Second Encounter

70

Serious Sam HD: The Second Encounter

GenreShooterSubgenreFPS

SoloMultiplayerCo-opOnlineDarkFirst Person

Steam👍 91%· 926IGDB77· 2

Year 2010Dev Croteam · Devolver DigitalOn Linux · PC

✓ Both are first-person shooters — sharing shooter, first-person shooting and dark, oppressive atmosphere

≠ Stands apart with melee combat, setting scifi and visual third person, while skipping survival mechanics

Where it drifts furthest from Species: Unknown: setting.

It predates Species: Unknown by 15 years, with what that implies technically.

Genre100Game mode100Tone100Visuals72Setting0

#15Wolfenstein: Youngblood

70

Wolfenstein: Youngblood

GenreShooterSubgenreFPS

Co-opSoloMultiplayerOnlineDarkFirst Person

Steam👍 43%· 16KIGDB71· 12OC67· 159

Year 2019Dev MachineGames · Bethesda SoftworksOn PS4 · PC · Xbox

✓ Both are first-person shooters — sharing shooter, first-person shooting and dark, oppressive atmosphere

≠ Where it differs: brings adventure storytelling, deep RPG systems and strong narrative focus, while skipping survival mechanics

Where it drifts furthest from Species: Unknown: setting.

On reception: its Steam reviews are mixed, against very positive for Species: Unknown.

Genre100Game mode100Visuals100Tone86Setting0

Complete list of online games like Species: Unknown

The full catalog of games sharing gameplay DNA with Species: Unknown, 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.

Superfighters Deluxe

Superfighters Deluxe

Shooter · FPS

Streets of Rogue

Streets of Rogue

Shooter · FPS

Evolve

Evolve

Shooter · FPS

Lost Planet 2

Lost Planet 2

Shooter · FPS

Zombie Panic! Source

Zombie Panic! Source

Shooter · FPS

Gotham City Impostors Free to Play

Gotham City Impostors Free to Play

Shooter · FPS

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