Single-player games like Astro Colony
Below are 10 single-player Steam games similar to Astro Colony, 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 Astro Colony page.
Ranked picks
- 1
Hydroneer
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Hydroneer is a mining and base building sandbox. Dig for gold and other resources to turn a profit and enhance your mining operation. Build a base of operations, forge weapons, go fishing, and dig deep!
- 2
Oddsparks: An Automation Adventure
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Oddsparks is a blend of automation and real-time strategy for both the die-hard fans of the automation genre and the automation-curious. Explore a strange fantasy world, uncover the mysteries of the past, automate your workshops, and go on adventures with your odd & adorable Sparks!
- 3
Satisfactory
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
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
Factorio
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 5
Outworld Station
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Take the helm as a new Station Commander and exploit an alien star system in this stunning space-station factory automation game. Amass resources and construct starships using increasingly advanced manufacturing and expand your station in a hostile universe.
- 6
Autonauts
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Indie and Simulation with Astro Colony.
In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.
- 7
Timberborn
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.
- 8
The Colonists
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Strategy and Indie with Astro Colony.
Build a new home for your team of robots as they begin a new life for themselves on a distant planet where they can fulfil their ultimate dream: to be human.
- 9
Raft
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Indie and Adventure with Astro Colony.
Raft™ throws you and your friends into an epic oceanic adventure! Alone or together, players battle to survive a perilous voyage across a vast sea! Gather debris, scavenge reefs and build your own floating home, but be wary of the man-eating sharks!
- 10
Immortal Engine
Single-player alternative to Astro Colony — playable solo, no multiplayer required. Shares Simulation with Astro Colony.
A fantasy & sci-fi universe simulator that runs from the birth of the first gods to the death of the last mortal. For those who spend more time in a character creator than playing the game. Design worlds, gods, races, metals, magic and monsters down to the melting point — then simulate it all.