Single-player games like Lonely Space
Below are 8 single-player Steam games similar to Lonely Space, 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 Lonely Space page.
Ranked picks
- 1

Peripeteia
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action and Indie with Lonely Space.
You are Marie, a cyborg mercenary dropped into the rot of a post-Soviet city of corruption and opportunity. Shoot, sneak, hack, climb or talk your way through alt-history cyberpunk Poland in an immersive sim where every problem has multiple solutions and every rooftop is reachable.
- 2

Remnants of R'lyeh
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action and Indie with Lonely Space.
Inspired by H.P. Lovecraft's Great Work. An ancient dark power is calling you and you need to find an exit. Face your greatest fear, fight, hide... you must escape before the underwater city rises...
- 3

Loop of Death
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Indie with Lonely Space.
Explore a mysterious hospital in this first-person psychological survival horror game. Solve challenging puzzles, uncover hidden secrets, manage limited resources, and survive a relentless presence that never stops hunting you.
- 4

NO LAW
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action and RPG with Lonely Space.
Welcome to Port Desire, a city that doesn't belong to anyone, but where everyone wants a piece. You’re Grey Harker, an ex-military attempting to live a quiet life after near fatal injuries in the field. All you want now is peace - but in a city of no laws, what you want isn’t always what you get.
- 5

Cave Expedition
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Indie and Simulation with Lonely Space.
The Ultimate Caving Simulator. Experience dry and wet caving as you descend into tight squeezes, massive chambers, and uncharted depths. The deeper you go, the more upgrades & equipment you need ... and every decisions matters!
- 6

Reborn
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action and Indie with Lonely Space.
Reborn - an atmospheric first-person survival horror. Explore a dark mansion, uncover its secrets, and survive among infected people. Use weapons, stealth, and limited resources to find your way to the truth.
- 7

Zero Trust
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action and Indie with Lonely Space.
An action hacking simulator set in a fully simulated world. Choose your path, craft your own tools, exploit vulnerabilities, and build your reputation. Every company, hacker, and law enforcement agency operates independently — nothing happens by chance. Every playthrough is unique.
- 8

Deus Ex: Game of the Year Edition
Single-player alternative to Lonely Space — playable solo, no multiplayer required. Shares Action with Lonely Space.
The year is 2052 and the world is a dangerous and chaotic place. Terrorists operate openly - killing thousands; drugs, disease and pollution kill even more. The world's economies are close to collapse and the gap between the insanely wealthy and the desperately poor grows ever wider.