Single-player games like Harthorn
Below are 17 single-player Steam games similar to Harthorn, 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 Harthorn page.
Ranked picks
- 1

The Swine
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Say goodbye to southern hospitality in the backwoods of rural America. The Swine is a short horror experience that explores isolation, witchcraft, and unforeseen consequences in your rural homestead.
- 2

The Bridge Curse 2: The Extrication
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Adventure with Harthorn.
Try to escape with your life in a first-person survival horror adventure. Play through the eyes of four distinct characters as you evade and confront terrifying ghosts, unravel mind-bending puzzles, and unearth a sinister conspiracy…
- 3

Observer: System Redux
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Indie and Adventure with Harthorn.
A first‑person cyberpunk horror detective story set in a decaying, neon‑scarred future. As an Observer who invades minds to hunt for clues, you will sift through corrupted memories to track down a mysterious killer and confront your own dark past.
- 4

Deathbloom: Chapter 1
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Inspired by classic survival horror. Bachman Manor sprawls into a maze of corridors, bedrooms, foyers, and more. Filled with puzzles, traps, and hidden passageways that explore the secrets of its dark history and occupants.
- 5

The Painscreek Killings
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Indie and Adventure with Harthorn.
Investigate an infamous cold case in the eerie, abandoned town of Painscreek. Search for evidence, connect the dots and uncover who killed Vivian Roberts. Can you expose the truth behind this town’s dark secrets?
- 6

Lazaret
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Indie and Adventure with Harthorn.
Lazaret is an atmospheric first-person horror game. You play as a member of a rescue team called out to investigate a distress signal coming from a ship that disappeared 4 years ago.
- 7

DYSTHANASIA
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
You awaken in a cold unfamiliar building crawling with grotesque creatures. Stave off terror using your wits and anything you can find, then try to make it out alive in this highly atmospheric environmental horror game.
- 8

BLINK: The Last Night
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Indie and Adventure with Harthorn.
A vengeful entity comes to kidnap the girl you're babysitting. Guide your way through various psychological twists and turns as you begin to realize that not everything is as it seems. BLINK: The Last Night is a short first chapter of a four-chapter psychological horror story.
- 9

Outlast
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
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.
- 10

Obscure
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Adventure with Harthorn.
For some time now, Leafmore High School has been the setting for unexplained disappearances. In this survival horror game, you take control of a group of 5 American students. With your friends, you try to unravel the mysterious happenings at this unremarkable-looking school. The night will be long and survival not will not be easy...
- 11

Resident Evil 7 Biohazard
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Adventure with Harthorn.
Fear and isolation seep through the walls of an abandoned southern farmhouse. "7" marks a new beginning for survival horror with the “Isolated View” of the visceral new first-person perspective.
- 12

White Day: A Labyrinth Named School
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Notorious cult-classic Korean horror. Sneak into school at midnight to return your sweetheart's diary and get caught in a terrifying game of cat and mouse. Explore haunted hallways, solve classic survival horror puzzles and escape the clutches of a killer Janitor who is out for your blood.
- 13

The Suicide of Rachel Foster
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Indie and Adventure with Harthorn.
Coming back to the family hotel after years, a young woman finds herself trapped with the ghosts from her past and an old cellular telephone as the only way to unveil a terrible truth.
- 14

Witching Hour
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Witching Hour is a horror story that takes you out of your family home and across the quiet town of Hollow Hills. Your fate depends on making difficult choices, your relationship with your family, and confrontations with the matriarch of the town’s affliction with witchcraft, Lucilia.
- 15

SILENT HILL 2
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Adventure with Harthorn.
Investigating a letter from his late wife, James returns to where they made so many memories - Silent Hill. What he finds is a ghost town, prowled by disturbing monsters and cloaked in deep fog. Confront the monsters, solve puzzles, and search for traces of your wife in this remake of SILENT HILL 2.
- 16

Deathbloom: Chapter 2
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Continue your journey through Bachman Manor as you inch closer to freedom, or towards your mysterious friend Christina and her candle-lit secrets. Going deeper into the estate reveals more locations like the Abandoned Wing, Lower House, and the bunker complex "Salvation".
- 17

Jawbreaker
Single-player alternative to Harthorn — playable solo, no multiplayer required. Shares Action and Indie with Harthorn.
Will you survive when the world falls apart? Jawbreaker is a punishing stealth & survival horror game that will have you running, hiding, and fighting in a terrifying gang-infested society on the verge of collapse. Though that’s not all, once the sun goes down the true fear begins...