Single-player games like GreenMars: Expedition 744
Below are 8 single-player Steam games similar to GreenMars: Expedition 744, 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 GreenMars: Expedition 744 page.
Ranked picks
- 1

Whisper of the Swallows
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Action and Indie with GreenMars: Expedition 744.
Brave a savage, unforgiving procedurally generated world where extreme weather and the nightmares of the dark will hunt you down. Alone or in co-op, survive, build, and explore to turn a cursed hellscape into your sanctuary of light.
- 2

The Forest
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Action and Indie with GreenMars: Expedition 744.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 3

Satisfactory
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Indie and Adventure with GreenMars: Expedition 744.
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
- 4

No Man's Sky
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Action and Adventure with GreenMars: Expedition 744.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 5

Ars Notoria
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Action and Adventure with GreenMars: Expedition 744.
Ars Notoria is an open-world survival crafting game set in a rich fantasy world. Learn six distinct schools of magic, gather resources, build your base, expand your influence, and stand against the ever-shifting threat of the Enthralled. You are the one destined to change the kingdom.
- 6

Empyrion - Galactic Survival
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Indie and Adventure with GreenMars: Expedition 744.
Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!
- 7

Abiotic Factor
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Action and Adventure with GreenMars: Expedition 744.
Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.
- 8

Occupy Mars: The Game
Single-player alternative to GreenMars: Expedition 744 — playable solo, no multiplayer required. Shares Indie and Adventure with GreenMars: Expedition 744.
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.