Single-player games like Specimen 13
Below are 11 single-player Steam games similar to Specimen 13, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Specimen 13 page.
Ranked picks
- 1
Dying Light
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action with Specimen 13.
First-person action survival game set in a post-apocalyptic open world overrun by flesh-hungry zombies. Roam a city devastated by a mysterious virus epidemic. Scavenge for supplies, craft weapons, and face hordes of the infected.
- 2
Contagion
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system that makes every round completely unpredictable with resources, objectives, and paths ever changing.
- 3
Outlast
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
- 4
The Persistence
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
Survive aboard a doomed deep space colony starship, overrun with horrific and murderous aberrations. Explore, evade and fight your way through the depths to bring the ship back to Earth. Gather resources, upgrade abilities and fabricate an arsenal of weapons in this sci-fi horror roguelite.
- 5
The Forest
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 6
White Noise 2
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
Enjoy a 4vs1 asymmetric horror experience like no other. Be a part of the investigator team, or take control of the creature and devour them!
- 7
Alien: Isolation
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action with Specimen 13.
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.
- 8
In Silence
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action with Specimen 13.
In Silence is a multiplayer horror game. One player takes on the role of the monster who has hypersensitive hearing abilities and is almost completely blind. The other players(2-6) play as survivors, trying to escape or hunting the monster.
- 9
Border Force
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Indie with Specimen 13.
It is 10:59PM on March 29th 2019. With one minute to go until Britain's exit from the European Union is formalised, you are ready to get to work. The UK's safety is in your hands. You are Border Force.
- 10
Crimson Hotel
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Adventure with Specimen 13.
In 1949 two gruesome accidents tainted the Crimson's reputation and led to an innocent mother being charged with murder. Jane Barker hasn't been seen since her release in 1954. You're a group of teenagers on their way home from a party when your car breaks down outside the Crimson Hotel...
- 11
Humble Rumble
Single-player alternative to Specimen 13 — playable solo, no multiplayer required. Shares Action and Indie with Specimen 13.
Humble Rumble is a multiplayer physics-based brawling party game spanning several maps, themes and modes. Compete or co-operate with your friends across various activities from battles at sea to farming to gift giving.