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

Stellar Shipyard
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Ascent.
Stellar Shipyard is a space colony sandbox where you design modular ships and stations, and automate resource production using drones and workers. Let the automated systems fly even the most improvised designs. Face rival factions and threats solo, or alongside friends as allies or rivals.
- 2

Benders In Space
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Ascent.
Mine the belts, colonize distant worlds, and choose your allies as three rival factions fight over a fractured frontier, then prestige through five starships and lead a joint fleet against the invading Dominion.
- 3

Astra Industria
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Ascent.
Astra Industria is a sci-fi factory builder set on colossal player-constructed space megastructures with the addictive growth of incremental games. Extract resources, craft advanced components, and automate deep-space production through a vast tech tree.
- 4

MORS
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Ascent.
Build an automated factory on a true-scale Mars streamed from real NASA terrain. Mine, smelt and belt resources, run trains between outposts, master chemistry, and grow from a lone lander into a planet-spanning industry while the real Martian weather does its worst.
- 5

Industronaut
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Ascent.
A survival engineering game where you build life support habitats, mine resources, and automate production chains on a radiation heavy planet. No rescue. No support. Just engineering.
- 6

F.A.R.M.S.: Chill Factory
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Ascent.
F.A.R.M.S.: Chill Factory is a relaxed automation sim where you build at your own pace. Design complex lines with the intuitive Link System and Relays. Unlock new tech via the Tech Tree, boost production with your clicks, and manufacture everything from iron to sushi in your ultimate factory!
- 7

Hexfactory
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Ascent.
Build cities and factories in an infinite Hex World. Explore more tiles. Balance your city's production and consumption, attract more citizens of different classes, research new technologies and build more factories and cities.
- 8

Nightwater
Single-player alternative to Cosmic Ascent — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmic Ascent.
Forage, craft and automate to grow your factory, unlock new technologies and expand your island to discover new biomes. Progress through the ages from sticks and stones to the Bronze Age, the Industrial Era and into the future to uncover the secret of the Lighthouse and escape this reality.