Single-player games like Fort Solis
Below are 14 single-player Steam games similar to Fort Solis, 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 Fort Solis page.
Ranked picks
- 1
1000xRESIST
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
1000xRESIST is a thrilling sci-fi adventure. The year is unknown, and a disease spread by an alien invasion keeps you underground. You are Watcher. You dutifully fulfil your purpose in serving the ALLMOTHER, until the day you discover a shocking secret that changes everything.
- 2
Radiolight
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Ashwood Creek, 1985. A child disappears without a trace. A local policeman is drawn into a national park, seeking the truth. Mysterious radio signals beckon him further and further. Investigate, survive and face the unknown in Radiolight— an '80s thriller by solo dev Krystof Knesl.
- 3
CH13: Rest Stop
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Rest Stop is a psychological horror game set in early 2000s Poland. What begins as a calm drive through the woods turns into something you weren't prepared for... Will you find out what awaits at the end of the road?
- 4
Silent Wounds - The Doll
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Silent Wounds is an episodic psychological horror anthology. Each episode offers a compact and intense narrative experience. In this first episode, a man returns home and trades reality for the dangerous, silent obsession with a perfect doll.
- 5
Nightmare Side: The Game
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Indonesian horror game set in Ardan Radio station from Bandung. Don't listen to Nightmare Side alone, or you'll invite the darkness.
- 6
The Secrets Of Hope
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Lose yourself in an immersive story, as you follow a man coming to terms with terminal cancer. Explore a surreal world from a first-person perspective. Revisit both new and old memories and follow along as he discovers The Secrets of Hope
- 7
Luto
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Luto is a psychological horror experience where you take on the role of someone unable to leave their home. Every attempt to escape will lead you deeper into the unknown, where nothing is as it seems and everything will test your senses.
- 8
![[HERROR] Gas Station Case — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/3902800/07a48d0c3ff7fff12498691c296dda2b25359da7/header.jpg?t=1780490013)
[HERROR] Gas Station Case
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Detective horror about a night shift far from the city. Refuel cars, serve customers, keep the gas station running, and investigate why people are disappearing in the area. But most importantly, be careful with visitors - not all of them are human.
- 9
What Remains of Edith Finch
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
What Remains of Edith Finch is a collection of strange tales about a family in Washington state. As Edith, you’ll explore the colossal Finch house, searching for stories as she explores her family history and tries to figure out why she's the last one in her family left alive.
- 10
System Shock 2: 25th Anniversary Remaster
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.
- 11
The Martian Job
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Rob the first Martian casino and find out who really rules the planet! Crack a safe, break some hearts, start a revolution, or get rich beyond the stars!
- 12
Red Dead Redemption 2
Single-player alternative to Fort Solis — playable solo, no multiplayer required. Shares Adventure with Fort Solis.
Arthur Morgan and the Van der Linde Gang are outlaws on the run. With federal agents and bounty hunters massing on their heels, the gang must rob, steal, and fight their way across the rugged heartland in order to survive.
- 13
Sunshine Heavy Industries
Single-player alternative to Fort Solis — playable solo, no multiplayer required.
Welcome to Sunshine Heavy Industries! As the new spaceship engineer, solve increasingly tricky design puzzles with your own personal style. Manage customer demands, juggle budget and ship performance, and survive the questionable decision making skills of your business partner.
- 14
Ultra Mega Cats
Single-player alternative to Fort Solis — playable solo, no multiplayer required.
Blast your way through hordes of enemies in Ultra Mega Cats, a cooperative roguelike third-person shooter. Play As one of the Mega Cats, armed to the fangs with a wide variety of abilities and escape captivity from your Rodent and Bird Overlords!