Single-player games like Galactic Civilizations III
Below are 21 single-player Steam games similar to Galactic Civilizations III, 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 Galactic Civilizations III page.
Ranked picks
- 1
Sid Meier's Civilization®: Beyond Earth™
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
- 2
Warhammer 40,000: Gladius - Relics of War
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions.
- 3
Galactic Civilizations IV
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.
- 4
Oriental Empires
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Turn based 4X strategy game, recreating the civilizations of ancient China. Develop your land, build great cities, raise huge armies and fight epic battles, with hundreds of soldiers fighting right on the game map. Advance your technologies, culture and religion to create one of mankind’s biggest empires.
- 5
Pandora: First Contact
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Pandora: First Contact is a science fiction 4X turn-based strategy game on a planetary scale. Our Earth has been exhausted and colonial attempts on other planetary bodies have been in vain. Finally, after decades of exploration, an interstellar probe has brought promise of a new world.
- 6
ENDLESS™ Legend
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
ENDLESS™ Legend is a 4X turn-based fantasy strategy game by the creators of ENDLESS™ Space and Dungeon of the ENDLESS™. Control every aspect of your civilization as you struggle to save your homeworld Auriga. Create your own Legend!
- 7
Galactic Civilizations® II: Ultimate Edition
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!
- 8
Shadow Empire
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.
- 9
Stellaris
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
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.
- 10
Master of Orion 2
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.
- 11
Master of Orion
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers.
- 12
Stars in Shadow
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
- 13
ENDLESS™ Space 2
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?
- 14
Galactic Empire
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Galactic Empire is a 2D turn-based strategy game where you, as the Commander, decide the fate of the entire universe. Expand your planet, explore solar systems, play cards in cantinas, modify your ships and conquer more planets.
- 15
Stargate: Timekeepers
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Stargate: Timekeepers is a real-time tactics game where you lead a team of specialists through a story-driven campaign set in the SG-1 universe. Sneak your characters behind enemy lines, use their unique skills, craft the perfect plan to unravel a timeloop mystery, and defeat the Goa’uld threat.
- 16
Sins of a Solar Empire®: Rebellion
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
- 17
Sins of a Solar Empire II
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
- 18
Ashes of the Singularity: Escalation
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
- 19
Star Control®: Origins
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required.
Star Control is a space role-playing game in which you command Earth's first interstellar starship on a mission to save the Earth from hostile alien empires.
- 20
Fallen Enchantress: Legendary Heroes
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Fallen Enchantress is 4X strategy game from the makers of Sins of a Solar Empire and Galactic Civilizations. Build a civilization in the magical world of Elemental. Recruit heroes, train armies, build cities, forge alliances and save the world in this rich world where it's never the same game twice.
- 21
The Political Machine 2020
Single-player alternative to Galactic Civilizations III — playable solo, no multiplayer required. Shares Strategy with Galactic Civilizations III.
Win the hearts and minds of America’s voters and take the 2020 presidential election by storm in Stardock’s popular political strategy game. Choose a candidate and run against a computer opponent or a candidate controlled by another person over the Internet.