Single-player games like The Sleep Experiment
Below are 8 single-player Steam games similar to The Sleep Experiment, 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 The Sleep Experiment page.
Ranked picks
- 1
Mountains of Madness
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
A first person horror exploration game set in the frozen wastes of Antarctica. Use your tools to navigate the frozen galleries untouched by millennia and unearth evidence of a dreadful truth while you search for a madman whose ill fate lies somewhere beneath these Mountains of Madness
- 2
The Coma 3: Bloodlines
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
Welcome to the world of The Coma 3: Bloodlines. In this realm of shadows rumors and urban legends become reality, and danger lurks around every corner. If a living intruder dies here, their body will be severed from their spirit and never wake again ...
- 3
Lamentum
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
Lamentum is a pixel art survival horror game, set in New England in the mid-nineteenth century.
- 4
SOMA
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
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.
- 5
Dead of Darkness
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
Dead of Darkness is a 2D survival-horror action-adventure. Investigate a mysterious island and unravel its disturbing secret. You’ll have to face grotesque creatures, hurdle deadly traps, solve puzzles, and most importantly, survive.
- 6
The Land of Pain
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Indie with The Sleep Experiment.
Something strange appears in the woods. Lost in a dark and unknown place, survive an unrelenting enemy, solve puzzles, and uncover the ancient mystery that’s befallen this land in this Lovecraftian Cosmic Horror adventure.
- 7
Amnesia: The Dark Descent
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
Amnesia: The Dark Descent, a first person survival horror. A game about immersion, discovery and living through a nightmare. An experience that will chill you to the core.
- 8
ASYLUM
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Indie with The Sleep Experiment.
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.