Games like Starbase Orion

Emperor of the Fading Suns Enhanced puts you in command of one of five Royal Houses vying for control in a dark age of space. Engage in deep 4X strategy with combined arms combat, exploration, and diplomacy across land, sea, air, and space. Navigate political intrigue and battle for dominance to become the supreme ruler of the Known Worlds.

Space Empires IV Deluxe is a turn-based strategy game that allows players to build their own space empire. Design and build ships, colonize planets, exploit resources, and engage in tactical combat in a vast and dynamic universe. The deluxe edition includes enhanced graphics, additional races, and new gameplay features for an improved space empire-building experience.

Master of Orion 2 is a turn-based 4X strategy game set in space. Players must explore, expand, exploit, and exterminate to become the dominant force in the galaxy. Featuring a rich array of customizable races, advanced technology tree, and challenging AI opponents, this game offers endless replayability and strategic depth. Conflict and diplomacy with computer-controlled and human opponents add to the depth of this classic space conquest simulation.

"Star Ruler 2" is a real-time grand strategy game that allows players to build and manage their own space empire. With fully destructible planets and a procedurally generated galaxy, players can engage in interstellar warfare, diplomacy, and research to expand their territory and ensure their species' survival. The game also features a multi-threaded simulation engine, enabling large-scale battles and complex political dynamics.

"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.

"Imperium Galactica II" is a space-based real-time strategy game with empire-building elements. It features multiple playable species, a vast Sci-fi universe, and a variety of ways to achieve victory. The game includes three playable campaigns, custom scenarios, and massive battles. With updated high-res textures and vivid colors, players can relive the golden age of gaming and lead their species to ultimate domination.

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.

"ENDLESS™ Space 2 is a strategic space opera where you expand your empire, discover ancient artifacts, and engage in interstellar warfare. The Digital Deluxe Edition includes cosmetic bonuses, soundtrack, and access to the GAMES2GETHER community for contributing ideas and feedback. This game takes place in a galaxy originally colonized by the enrocked beings called the 'ENDLESS™'."

"Distant Worlds: Universe" is a 4X space strategy game with a real-time pausable gameplay style, offering vast galaxies with up to 1400 star systems and 50,000 planets. The game features an engaging storyline, various victory conditions, and open-ended sandbox mode. It also includes all previous Distant Worlds releases and improved modding support.

In AI War: Fleet Command, you lead a small human resistance force against an AI overlord that has defeated humanity in a brutal war. With faster ships and automated defenses, your mission is to outsmart and defeat the AI subcommanders, avoiding detection by central processing until it's too late. This challenging real-time strategy game demands strategic thinking and careful resource management to overcome overwhelming odds.