Single-player games like Decay: The Mare
Below are 13 single-player Steam games similar to Decay: The Mare, 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 Decay: The Mare page.
Ranked picks
- 1

Dead Synchronicity: Tomorrow Comes Today
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
A dying reality, a universe that’s fading away. A merciless world thatgets sick and vanishes. No past, no present, no future; only the impending moment of “dead synchronicity” ahead. Will you be able to stop it?Because, otherwise... what will you do when Time dissolves itself?
- 2

Dead Take
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
Find your missing friend. Uncover the secrets within. Brave a luxurious and haunting mansion in Dead Take, a first-person psychological horror crafted by Surgent Studios.
- 3

SOMA
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.
- 4

Layers of Fear (2016)
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
A first-person psychological horror with a strong emphasis on atmosphere and storytelling. Explore an ever-shifting Victorian mansion as a painter seeking to complete his masterpiece, even at the cost of his own sanity.
- 5

ASYLUM
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
An epic supernatural horror adventure and the spiritual successor to cult classic Scratches set in a massive, decaying mental institute. Inspired by H. P. Lovecraft, Hammer Films and twisted Euro Horror from the 80s.
- 6

Penumbra: Black Plague Gold Edition
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
Surrounded by enemies and assaulted by terror from all sides, Philip must collect clues and solve vexing puzzles while combating the gnawing psychological terrors that assail his mind and threaten to strip him of his sanity.
- 7

Rise of Insanity
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
In Rise of Insanity, as a doctor of psychology you will explore the darkest recesses of the human mind. Overcome your fear to find the truth behind the tragedy that has befallen your family.
- 8

DISTRAINT: Deluxe Edition
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Indie and Adventure with Decay: The Mare.
DISTRAINT is a 2D psychological horror adventure game for PC. In order to secure a partnership in a famous company, Price seizes the property of an elderly woman. In that very moment, he finds out the price of his humanity.
- 9

Scratches - Director's Cut
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Adventure with Decay: The Mare.
Dark Legends surround the old abandoned Blackwood house, secluded far away in the northern wastelands. For writer Michael Arthate, this cold, solitary atmosphere is fodder for his restless imagination. But Michael soon becomes distracted by the mysteries offered up, as he follows a trail exploring and delving into the secrets of the past.
- 10

Resident Evil
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Adventure with Decay: The Mare.
The game that defined the survival-horror genre is back! Check out the remastered HD version of Resident Evil.
- 11

SILENT HILL 2
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Adventure with Decay: The Mare.
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.
- 12

Nancy Drew®: Last Train to Blue Moon Canyon
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Adventure with Decay: The Mare.
Catch this train — it’s your ticket to solving a century-old mystery!
- 13

Post Mortem
Single-player alternative to Decay: The Mare — playable solo, no multiplayer required. Shares Adventure with Decay: The Mare.
After returning to the quiet streets of Paris to pursue a life of painting, Gus Macpherson could not escape his true art…