Single-player games like Astrometica
Below are 12 single-player Steam games similar to Astrometica, 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 Astrometica page.
Ranked picks
- 1

Astrometica: Prologue
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
Astrometica: Prologue is the free game about surviving in space. You need to use your skills and tools to stay alive. There are many challenges to face, and you need to fight to survive. You also need to build a new base in space.
- 2

Satisfactory
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
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!
- 3

Eden Crafters
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
Eden Crafters is a solo or co-op open-world survival, crafting, and factory-building game where you transform a hostile planet into a habitable haven for humanity. Build, automate, and terraform. Control the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
- 4

The Planet Crafter
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Adventure with Astrometica.
A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.
- 5

No Man's Sky
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Adventure with Astrometica.
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
- 6

Astro Colony
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
- 7

Stardeus
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie with Astrometica.
Stardeus is a deep colony sim set on a broken starship manned by drones and hibernating human survivors. As the AI, have your drones repair your ship, save your crew and travel the stars in this beautiful simulation.
- 8

Dyson Sphere Program
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Early Access with Astrometica.
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
- 9

Subnautica
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
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.
- 10

Breathedge
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
Survive in outer space! Together with your immortal chicken, discover the truth behind your sudden spaceship crash. Craft tools, pilot vehicles, and even control space stations to survive and explore the wreckage.
- 11

Valheim
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Indie and Adventure with Astrometica.
A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!
- 12

Subnautica 2
Single-player alternative to Astrometica — playable solo, no multiplayer required. Shares Adventure and Early Access with Astrometica.
Subnautica 2 is an underwater survival adventure set on an all-new alien world, developed by Unknown Worlds. Play alone or with friends in 4-player co-op. Adapt to survive by building custom bases and crafting tools. Explore the unknown to uncover the mysteries hidden within the depths.