Single-player games like The Solus Project
Below are 13 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

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.
- 2

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.
- 3

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.
- 4

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.
- 5

Spooky's Jump Scare Mansion: HD Renovation
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
Can you survive 1000 rooms of cute terror? Or will you break once the cuteness starts to fade off and you're running for your life from the unspeakable hideous beings that shake and writhe in bowels of this house? They wait for you, they wait and hunger for meeting you.
- 6

House of the Dying Sun
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Simulation with The Solus Project.
House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.
- 7

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.
- 8

MIND: Path to Thalamus Enhanced Edition
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Adventure with The Solus Project.
MIND: Path to Thalamus is a First Person Puzzler that throws you into a fantastic and surreal environment. You will bend the natural elements to your will in order to progress in this emotive, mindbending tale. Now also in Virtual Reality!
- 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

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.
- 11

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.
- 12

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.
- 13

Gravity
Single-player alternative to The Solus Project — playable solo, no multiplayer required. Shares Indie and Simulation with The Solus Project.
Welcome to the world of Gravity! 100 levels of physics and logic await you. Solve puzzles, place blocks, and enjoy completing each level!