Single-player games like Unending Galaxy
Below are 10 single-player Steam games similar to Unending Galaxy, 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 Unending Galaxy page.
Ranked picks
- 1
Wayfallen
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Simulation with Unending Galaxy.
A galaxy with its own economy, its own wars, and no reason to wait for you. Trade, mine, fight, and salvage a living - alone on the rim, or at the head of an empire the great powers can't ignore. A single-player space sandbox that never stops moving.
- 2
Solar Nations
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy with Unending Galaxy.
Command grand fleets and wage strategic wars on an interstellar scale in this new take on galactic Grand Strategy. Transform nature to suit the needs of Empire and surge forward! Will you guide aspiring interstellar nations to glory, or rekindle the flames of a long lost Empire?
- 3
SALVOR ADRIFT
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Indie with Unending Galaxy.
A lo fi space salvage game. Strip dead warships for parts, fuel and gear. Fit your ship, manage your heat, and fight the machines that still hunt out here. Two hundred star systems, thousands of rolled drops, stations to build up. Made by one person. Trust nothing. Stay adrift.
- 4
X3: Reunion
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy with Unending Galaxy.
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
- 5
Starpoint Gemini Warlords
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Simulation with Unending Galaxy.
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
- 6
Lord of Rigel
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Indie with Unending Galaxy.
Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?
- 7
Solar Baron
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Simulation with Unending Galaxy.
As head of an interplanetary corporation, your goal is to extract resources from across the solar system and bring them home faster and cheaper than your competitors. Construct trade depots and colonies. Build rockets and spaceports. Master realistic orbital mechanics and maximize profits.
- 8
Stellaris
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Simulation with Unending Galaxy.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 9
X3: Terran Conflict
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Simulation with Unending Galaxy.
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
- 10
After the Collapse
Single-player alternative to Unending Galaxy — playable solo, no multiplayer required. Shares Strategy and Indie with Unending Galaxy.
ATC is a base building game set in a post-apocalyptic world featuring urban environments. Build a base across several layers with dozens of survivors. Fight other factions for the control of the remaining production centers and explore the world to find long forgotten resources and technologies.