Single-player games like The Solus Project
Below are 11 single-player Steam games similar to The Solus Project, 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 Solus Project page.
Ranked picks
- 1

ADR1FT
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
ADR1FT is the story of an astronaut who wakes up floating silently in space amongst the debris of destroyed space station…the only survivor of a catastrophic event, left with no memory, a critically damaged EVA suit leaking oxygen and no way home.
- 2

P·O·L·L·E·N
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
P·O·L·L·E·N is an atmospheric, suspenseful and highly interactive first person sci-fi exploration game set on Saturn’s moon Titan. Delve into the richly detailed Station M, and try everything you can get your hands on to uncover the mysteries that lie beneath the moon’s crust.
- 3

SOMA
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
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.
- 4

No Man's Sky
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Adventure with The Solus Project.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 5

Narcosis
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
Survival, horror at the sunless depths of the Pacific Ocean: Stranded on the seafloor with low light and few tools, an industrial diver takes desperate steps to surface before his oxygen — and sanity — give out.
- 6

Obduction
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
A new sci-fi adventure from Cyan, the creators of Myst. Abducted far across the universe, you find yourself on a broken alien landscape with odd pieces of Earth. Explore, uncover, solve, and find a way to make it home.
- 7

Elite Dangerous
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Adventure and Simulation with The Solus Project.
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
- 8

Subnautica
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 9

The Ball
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
As a swashbuckling archaeologist, unlock the mystery of the ancient ruins that have been hidden for centuries and discover a mysterious artifact, a gold and metal shelled Ball.
- 10

Myst
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
Welcome to Myst: a starkly beautiful island, eerily tinged with mystery and shrouded in intrigue. Built from the ground up to play in 2D & VR, explore Myst in a whole new dimension! Journey to the Ages, unravel puzzles, and be a part of the surrealistic adventure that will become your own.
- 11

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