Single-player games like Interior Worlds
Below are 17 single-player Steam games similar to Interior Worlds, 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 Interior Worlds page.
Ranked picks
- 1
Hypnagogia 無限の夢 Boundless Dreams
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
Meet colorful characters, discover mysterious secrets, and reassemble the fractured remains of an ethereal crystal as you explore a series of abstract worlds based on dreams, nightmares, and the places in between.
- 2
LiDAR Exploration Program
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
LiDAR Exploration Program is a relaxing atmospheric game with light horror elements, where you explore in complete darkness using a scanner to reveal the world around you.
- 3
Enjoy Your Stay
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
Escape the never-ending hallway of the Hudson: A hotel that doesn’t want its guests to leave. Spot anomalies, explore hidden spaces, collect narrative clues, and uncover the stories of the previous guests.
- 4
POOLIMINAL
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
POOLIMINAL is an exploration-horror experience set in endless pool rooms. The smell of damp tile, muffled water sounds, and corridors that lead nowhere... until the water finds you. A thalassophobia-driven horror journey through liminal aesthetics.
- 5
FotoMuseo 3D
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
A single-developer personal project. Discover all the hidden secrets in this little 3D Interactive Exploration Adventure. Your task is simple, cross the Earthgate Portal and visit a Photographic EXPO in the FotoMuseo. Collect clues and unlock new areas with your investigations.
- 6
Buried Life
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
1997. After a sudden mine collapse, you find yourself trapped inside an abandoned Soviet research complex where classified experiments were once conducted. Explore underground laboratories, uncover forgotten secrets, and discover why the facility was buried along with everything it contained.
- 7
Horror School Story
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
Immerse yourself in the foreboding atmosphere of Enspire School of Digital Art, brought to life with realistic graphics. Solve intricate puzzles and face psychological challenges to progress through the nightmarish school environment. FACE YOUR FEAR and ESCAPE THE NIGHT.
- 8
Only Fans
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
<Only Fans> is an object finding game where you find mildly boobs and mildly butts objects in a gooning rehab full of fans.
- 9
POOLS
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Adventure with Interior Worlds.
Walking simulator. Explore, admire and listen. Uncanny. Relaxing. Unnerving. Eerie. Immersive. No monsters chasing you or jumping at your screen, but can feel oppressive at times by invoking fears of getting lost, the dark, tight spaces and liminal space architecture. Inspired by backrooms.
- 10
SECLUSION
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
Seclusion is an atmospheric adventure of risk vs reward. Try to find supplies and a solution to saving humanity by day, but don’t be surprised if you don’t survive the night.
- 11
The Backrooms
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
You find yourself in a strange world with no idea how you got there. As you explore more, the world gets increasingly convoluted and unstable. You are now in... The Backrooms.
- 12
Anemoiapolis: Chapter 1
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
The most relaxing horror game you'll ever play. Anemoiapolis exists in the uncanny valley of American architecture -- endless carpeted floors and lonely malls. Escape for your life, and enjoy the scenery.
- 13
The Backrooms
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
The Backrooms is a first person survival horror game set in one of the most terrifying environments of the human psyche. Explore an ever evolving nightmare while running from terrifying creatures to stay alive.
- 14
The Complex: Expedition
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Adventure with Interior Worlds.
When a routine expedition into The Complex goes horribly wrong, you're left alone and lost, wandering the seemingly infinite maze of hallways, otherwise known as the Backrooms. Might there be something following you?
- 15
Seclusion
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
The walls listen...
- 16
Dead Space™ 2
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Adventure with Interior Worlds.
Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.
- 17
Late Homework | 遅れた宿題
Single-player alternative to Interior Worlds — playable solo, no multiplayer required. Shares Indie and Adventure with Interior Worlds.
Highschool student Haneko has forgotten her class assignments and must retrieve them by traversing a world of haunted horrors. Explore the dilapidated halls, find your missing homework, and avoid whatever's lurking around the corner in this bite-sized, retro survival horror experience.