Games like Sid Meier's Alpha Centauri

"Galactic Civilizations II: Endless Universe" is a turn-based strategy game that allows players to build and lead their own space empire. Explore and colonize new planets, research technologies, and engage in interstellar warfare or diplomacy with other civilizations. This edition includes the expansions "Dark Avatar" and "Twilight of the Arnor," adding new races, abilities, and storyline.

Pandora: First Contact is a sci-fi strategy game where you lead a human colonization team on an alien planet. Manage resources, research technologies, and build infrastructure to ensure your colony's survival while dealing with the planet's dangerous and mysterious lifeforms. Can you turn this hostile world into a thriving human settlement?

Zephon is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a grimdark future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?

Galactic Civilizations III is a turn-based strategy game that allows players to build and lead their own space empire. Explore new technologies, contact alien civilizations, and manage resources as you expand across the galaxy. A deep and complex experience, with a variety of ways to achieve victory and numerous customization options, ensuring high replay value.

"Stellaris" is a 4X grand strategy game that lets players explore, expand, exploit, and exterminate their way across the galaxy. As the leader of a spacefaring civilization, players will encounter unique alien races, navigate political intrigue, and manage their empire's resources in this epic quest for galactic dominance. The Galaxy Edition includes a digital soundtrack, exclusive alien race, and a digital collector's book.

Guide one of 12 races on their first interstellar journey from a single planet, until it becomes a mighty pan-galactic empire. From the Star Map you must manage your empire, deploy your fleets and conduct research, diplomacy and trade. Plot your strategy. Explore the universe and found new colonies. Turn your planets into mighty bastions. Make pacts and alliances, make threats or ask for favours -…

Endless Space is a turn-based 4X strategy game set in space. Players choose one of several unique civilizations, each with their own strengths, weaknesses, and victory conditions. Explore the galaxy, build and upgrade your empire, research new technologies, and engage in tactical space combat in this expansive and engaging game. With deep customization options and a variety of ways to win, Endless Space offers nearly limitless replayability.

"Horizon" is a single-player Science Fiction Turn Based Strategy game, offering about 4 hours of playtime. It features advanced turn-based tactical combat, full tactical ship control, and exploration of a vast, interactive galaxy with ten unique alien species. Colonize, trade, and defend your territory to expand humanity's reach beyond the known horizon.

"Shadow Empire is a complex turn-based 4X wargame set in an alien universe, where you lead a small nation in reconquering a devastated planet. Manage budgets, commanders, and diplomacy, and make tough decisions in response to ever-changing challenges. This immersive game offers a unique and rich experience, with an emphasis on military strategy and role-playing features."

In "Fragile Allegiance," players manage a high-tech corporation, mining asteroids, researching new technology, and engaging in corporate espionage and warfare. They must balance resources, production, and diplomacy with rival companies while dealing with unexpected events and challenges. The game features real-time strategy gameplay, with players building and upgrading facilities, managing personnel, and directing battles in a dynamic 3D environment.