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

Outlast
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
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.
- 2

The Beast Inside
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment.
- 3

Hellblade: Senua's Sacrifice VR Edition
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
The VR Edition of the critically acclaimed BAFTA award-winning Hellblade: Senua's Sacrifice. From the makers of Heavenly Sword, Enslaved: Odyssey to the West, and DmC: Devil May Cry, comes a warrior’s brutal journey into myth and madness.
- 4

Penumbra: Black Plague Gold Edition
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
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.
- 5

The Coma 2: Vicious Sisters
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
The Coma 2: Vicious Sisters is a Korean survival horror-adventure. Venture from your deserted school to survive the horrors of the night. Explore the surrounding Sehwa district and uncover the shadow realm's dark secrets. Use everything at your disposal to avoid a demoness hellbent on killing you!
- 6

Remothered: Tormented Fathers
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
Remothered: Tormented Fathers is the pure and realistic survival horror videogame
- 7

Penumbra Overture
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
Penumbra: Overture is a first person survival horror game, emphasizing on survival and problem solving instead of mindless violence and gore.
- 8

Lone Survivor: The Director's Cut
Single-player alternative to Deep Inside — playable solo, no multiplayer required. Shares Action and Indie with Deep Inside.
In this original and adult psychological survival horror, the masked protagonist must escape from a city ravaged by disease, by any means necessary.