Single-player games like Prisoner 518
Below are 10 single-player Steam games similar to Prisoner 518, 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 Prisoner 518 page.
Ranked picks
- 1

Red Matter 2
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
Red Matter 2 is an immersive, puzzle-adventure game that will transport you to the far reaches of space. Step into the shoes of Sasha, an agent awakened in a lunar base by an undercover operative and tasked with uncovering the secrets of the mysterious Red Matter.
- 2

The Station
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
The Station is a first-person sci-fi mystery set on a space station sent to study a sentient alien civilization. Assuming the role of a recon specialist, players must unravel a mystery which will decide the fate of two civilizations.
- 3

Riven
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
Uncover a story of intrigue, betrayal, and a civilization teetering on the brink of collapse as you solve intricate puzzles to unlock the secrets of Riven. Built from the ground-up and expanded from the award-winning original game released in 1997.
- 4

Metro Awakening
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Adventure with Prisoner 518.
Metro Awakening is a story-driven first person adventure built for VR that blends atmospheric exploration, stealth and combat in the most immersive Metro experience yet. Don your gas mask, brave the crippling radiation and venture into the depths of the Metro where threats haunt your every step.
- 5

Obduction
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
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.
- 6

Myst
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
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.
- 7

The Night is Grey
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
Graham’s alone in a forest filled with strange wolves. While he’s fleeing for his life he finds a lost girl in an abandoned lodge that won’t survive without his help. Try to find their way to safety in this slow-burning cinematic thriller filled with puzzles, hand-drawn animation and lots of mystery
- 8

The Alien Cube
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
A cursed legacy awakens something ancient, revealing a terrifying reality never meant for human eyes. Follow your missing uncle’s trail, uncover forbidden secrets, and face a Lovecraftian cosmic horror in this first‑person adventure.
- 9

The Solus Project
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required. Shares Indie and Adventure with Prisoner 518.
The Solus Project is a single player exploration adventure with survival elements. The adventure is set on a mysterious planet and is the spiritual successor to The Ball - 2010 PC Gamer Action/Adventure Game Of The Year...
- 10

BioShock™
Single-player alternative to Prisoner 518 — playable solo, no multiplayer required.
BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you.