Single-player games like Osylla
Below are 8 single-player Steam games similar to Osylla, 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 Osylla page.
Ranked picks
- 1

Quantum Sleeper
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
Research Facility G-1-6 has gone dark. Your mission: reestablish contact and investigate the communication blackout. Equipped with AEGIS-scanner and a flashlight, uncover what is really going on here.
- 2

GÖREV
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
After a catastrophic accident at Cheyenne Mountain Space Force Station the entire facility was plunged into darkness and evacuated Critical classified documents were left behind We have been assigned to retrieve them If you knew what hides behind those armored doors you would neveraccept thismission
- 3

Lost Life : Origins
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
"Lost Life : Origins" is a first-person survival horror experience that blends psychological tension, environmental storytelling, and strategic combat. Your journey is not about brute force, but perception, adaptation, and uncovering the truth buried beneath layers of reality.
- 4

Bloody Hills
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Indie with Osylla.
Survive Sunny Hills camp as The Hiker stalks you relentlessly. Brace for brutal chases, gruesome encounters, and agonizing escapes in this merciless survival horror game. Outsmart the killer, unravel secrets. Can you escape his bloodlust?
- 5

The house of the missing hands
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
A first person flat/VR survival horror game where you have to escape the dark farm where you are being kept against your will after finding out the package you were delivering contained a human hand. Use stealth to avoid The hand collector while unraveling the reason he collects hands.
- 6

Backrooms: The Labyrinth
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
Explore non-linear paths and evade lurking monsters as you uncover the mysteries of this eerie maze. Beware of the sinister entities that inhabit the shadows, ready to drag you deeper into the unknown.
- 7

Precept
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Action and Indie with Osylla.
Precept is a first-person psychedelic action horror game with a heavy focus on exploration. Players take control of a night guard whose purpose is to finish his daily task. The player must find way to escape and survive from mysterious company's environment and entities.
- 8

Malevolent Madness
Single-player alternative to Osylla — playable solo, no multiplayer required. Shares Indie with Osylla.
In a time-travel themed psychological horror game, explore cursed regions of the past, solve puzzles, and escape forces that threaten reality. Your choices determine your fate and the flow of time.