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
Ritual Tides
Single-player alternative to The Sleep Experiment — playable solo, no multiplayer required. Shares Action and Indie with The Sleep Experiment.
Ritual Tides is a story rich, psychological horror game set on the dark, atmospheric, isolated British island of Hortus. Explore the island, uncover its dark past, loot food, ammunition and supplies, evade the cult of the Fallow Parish, as you fight for survival against Lovecraftian horrors.
- 3
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 ...
- 4
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.
- 5
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.
- 6
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.
- 7
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.
- 8
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.