Single-player games like Cosmonautica
Below are 14 single-player Steam games similar to Cosmonautica, 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 Cosmonautica page.
Ranked picks
- 1
VALTERION: THE LOST EARTH
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
VALTERION: THE LOST EARTH is a sci-fi colony-building strategy game. Lead 50 survivors on Elyra, build a thriving colony, develop its economy and research, return to the stars, and search for the lost path back to Earth.
- 2
D.R.I.F.T.
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmonautica.
A slow, system-driven space sim about contracts, reputation, and survival through careful decision-making, not combat or heroics.
- 3
Starship Contractor: Galactic Tycoon
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Shape the Galactic Arms Race. As CEO of a private space arms company, design modular ships, research breakthrough tech, and win faction tenders. Outmaneuver rivals in prototype races and make critical choices that make every playthrough unique, from a startup to galactic dominance.
- 4
Interstellaria
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Managing a fleet across a dangerous galaxy. Every star and planet holds untold riches and dangers. Each encounter will require skills in trading, diplomacy, and combat. Allocate power to engines, charge all weapons, and take on the worst the galaxy has to handle.
- 5
Orbit Zero
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Simulation with Cosmonautica.
Create a Company, Build structures, Collect Resources, Make Investments and Speculate on Assets. Carefully manage your Workforce, Finances, Resources, Shareholders, BOD & Political Partnerships.
- 6
VOID PROFIT
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Fly a rented corporate vessel in a procedurally-generated universe, navigate risky routes, profit from changing markets before the opportunity disappears and you lose it all. Take jobs, navigate the markets, smuggle, lie. Do everything in order to keep flying.
- 7
Astrobound
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Adventure with Cosmonautica.
Survive and explore space in Astrobound! Visit strange planets, encounter cosmic calamities, and keep your crew alive as you journey through the stars in a retro-inspired whimsical space adventure.
- 8
Space Industry
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Build and automate your own modular space fleet in this sandbox base-building game. Mine asteroids, expand your ship, fight enemies, explore new star systems, and uncover the deepest secrets of the universe.
- 9
Sid Meier's Pirates!
Single-player alternative to Cosmonautica — playable solo, no multiplayer required.
Sail the Caribbean, marauding all on the high seas or ally your ship and crew as a privateer in search of riches - the life you choose is up to you. Face dogged enemies, raid unsuspecting villages, woo fair maidens, avoid capture or dig for buried treasure. Discover what it takes to become one of the most famous pirates in history!
- 10
Gazillionaire
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Become a Gazillionaire by starting a tiny trading company and building a business empire!
- 11
Halls of Torment
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Indie with Cosmonautica.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 12
Good Company
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Strategy and Indie with Cosmonautica.
Good Company is an in-depth management sim about building a trail-blazing tech corporation. Assemble complex production lines, manage employee logistics, and sell high-quality products on the market to become the best company in the whole county!
- 13
Pressure Overdrive
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Indie with Cosmonautica.
Pressure Overdrive is arcade twin-stick madness on hot wheels in a colorful bathtub-punk setting!
- 14
Halls of Torment: Prelude
Single-player alternative to Cosmonautica — playable solo, no multiplayer required. Shares Indie with Cosmonautica.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?