Single-player games like Sefton Asylum
Below are 10 single-player Steam games similar to Sefton Asylum, 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 Sefton Asylum page.
Ranked picks
- 1

Mockbuster Video
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure with Sefton Asylum.
A first-person psychological horror set in a late-night 1990s video rental store. As disturbing tapes begin to surface, reality distorts and your decisions shape how the night unfolds.
- 2

Clink
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure and Simulation with Sefton Asylum.
You are a lonely woman, secluded in a house with your cat... and the secrets of the past. What hides within your mind — illness, or something otherworldly? Nightmares and reality intertwine… everything is so foggy. Do you have the courage to remember what happened?
- 3

Oxenfree
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure with Sefton Asylum.
Oxenfree is a supernatural thriller about a group of friends who unwittingly open a ghostly rift. You are Alex, and you’ve just brought your new stepbrother Jonas to an overnight island party gone horribly wrong.
- 4

No, I'm not a Human
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Simulation with Sefton Asylum.
WARNING. Stay inside. Lock your doors. Close the blinds. Only let humans in. Eliminate all Visitors. An anxiety horror about paranoia in the End of Times.
- 5

Water Delivery
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure and Simulation with Sefton Asylum.
Water Delivery is a first person, horror experience where you play as a water delivery boy. Ride along in the delivery truck from house to house. Deliver filled water jugs, find and return empty jugs, and collect all the payments. Will you be able to finish your final route of the evening?
- 6

The Tartarus Key
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure with Sefton Asylum.
There’s no way out for Alex Young who wakes up to find herself locked in a strange mansion filled with puzzles, traps, and cameras following her every move. Whether she and her companions live or die, and find the truth behind their abduction, is up to you in this first-person mystery thriller.
- 7

OXENFREE II: Lost Signals
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure with Sefton Asylum.
Five years after the events of OXENFREE, Riley returns to her hometown of Camena to investigate mysterious radio signals. What she finds is more than she bargained for.
- 8

THRESHOLD
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Adventure with Sefton Asylum.
In a lonely station atop a mountain, a train rumbles its precious cargo to places unknown. Now is your shift. Keep the pace. Uncover a mystery. Fight for your last breath. The air is thin up here.
- 9

Blood Bar Tycoon
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Simulation with Sefton Asylum.
Blood Bar Tycoon is a vampire bar management game. Build bars and blood factories, lure humans to harvest their blood, process it, and serve your customers: other vampires. Research quirky machines and deal with hunters! Expand through Crimson City to become a mighty Elder!
- 10

Magic Forge Tycoon
Single-player alternative to Sefton Asylum — playable solo, no multiplayer required. Shares Simulation with Sefton Asylum.
Become the ultimate fantasy arms dealer. Forge enchanted weapons, fulfill contracts, influence wars, and shape the fate of kingdoms! Master the astral forge, upgrade your gear, use alchemy, dominate the resource market, and rise as the realm’s mythic weaponsmith.