Single-player games like Sinister Hospital
Below are 14 single-player Steam games similar to Sinister Hospital, 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 Sinister Hospital page.
Ranked picks
- 1
Satan Moans
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
Are you ready for an adrenaline-fueled adventure with "Satan Moans"? In this horror-packed game, you'll explore the supernatural events surrounding a teenager returning home in the dead of night. Are you ready to dive into a suspenseful universe?
- 2
Don't Leave
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
Welcome to a mysterious adventure where justice and the supernatural intertwine! Judge Harlan, in his old country cottage, faces a mysterious presence after his mother's sudden departure. Explore justice's limits in this extraordinary tale!
- 3
Cluppets
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Indie with Sinister Hospital.
You are trapped in an endless labirynth with mysterious evil Cluppets lurking in every corner. Use the power of your third eye to see through the unknown. Summon the spirit world and enter the reverse to harness it's energy against the darkness. Can you survive all the Cluppets and find a way out?
- 4
HOW
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Strategy and Indie with Sinister Hospital.
A psychological horror game where you play as a prisoner exploring the depths of a large and horrific medical facility. You must survive the many creatures and abominations inside and find all the secrets hidden within the strange new labyrinth.
- 5
Shaytan
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
🔐 Can You Escape the Clutches of Shaytan? 🔐 🕯️Embark on a chilling odyssey through the enigmatic corridors of the human mind in Shaytan, a psychological horror puzzle game that will haunt your senses. The very devil who once beguiled Adam into tasting the forbidden fruit in paradise.🕯️
- 6
İblis3:Phenomena
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Indie with Sinister Hospital.
İBLİS 3: PHENOMENA is a first-person psychological horror game. Explore a mysterious house set in realistic, slow-paced, atmospheric, and disturbing environments. It contains no puzzle or exploration elements; it is entirely built on tension and psychological pressure.
- 7
TEOCIDA
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Adventure with Sinister Hospital.
Solve riddles, puzzles and platforming challenges as you descend the cryptic pathways of a distorted microcosm reality fueled by a symbolic landscape of faith and erotic nightmares.
- 8
iBLiS
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Indie with Sinister Hospital.
Demon is a first-person psychological horror game. How much can a game affect your real life? Enjoy a realistic home environment and terrifying moments of being immersed in a real-life story.
- 9
Ground Parkour : First Mission
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
Ground parkour: First Mission, in short, you compete with yourself to reach the highest point on the track with different characters and different abilities in a construction site in the city. Each character has different abilities and you progress on this track full of obstacles. Enjoy!
- 10
Grouls
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
Uncover the chilling secrets of an abandoned house as Denis. Collect body parts, solve puzzles, and escape terrifying entities. Your choices shape your fate. Can you survive the nightmare?
- 11
Night Market Simulator
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Strategy and Indie with Sinister Hospital.
Start your market from scratch, choose and price your own products. Every sale leads to new licenses, bigger spaces, and exciting new opportunities. Take full control of your warehouse layout, manage your staff wisely, and lay the foundation for your very own market empire!
- 12
Submeris
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
Submeris is an underwater mining adventure set beneath a mysterious island. Dig, upgrade your gear, survive dangerous depths, and uncover the legendary treasure hidden far below the ocean floor!
- 13
Sweet Toys Simulator
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Strategy and Indie with Sinister Hospital.
Start your sweet store from scratch!. Pick and price your own toys and candies. Unlock new licenses with every sale, expand your shop, hire staff, and build the most colorful toy & candy empire ever! Manage shelves, set prices, and make your customers smile! 🧸🍭🎉
- 14
Project Cobalt
Single-player alternative to Sinister Hospital — playable solo, no multiplayer required. Shares Action and Strategy with Sinister Hospital.
⚗️ Project Cobalt is a survival action game set on a hostile island 🌴. Scavenge containers, mine resources, craft tools, hunt animals, and endure storms as you fight hunger, disease, and exhaustion all while uncovering the dark truth behind a failed experiment.