Endless Space (series)!

FreeOrion is a turn-based space empire and galactic conquest (4X) computer game being designed and built by the FreeOrion project. FreeOrion is inspired by the tradition of the Master of Orion games, but is not a clone or remake of that series or any other game.

The award-winning Space Empires IV Deluxe is the latest edition in the Space Empires series. A grand strategy title in the space 4X (explore, expand, exploit, and exterminate) genre, Space Empires has already found a place in the heart of strategy gamers everywhere.

Explore a vast galaxy full of wonder in Stellaris, the evolution of the 4X strategy genre with space exploration at its core.

Turn based, 4X, empire space builder, singleplayer, asymmetric, Emperor focused grand strategy. The game is a fast-paced, turn-based space empire builder with no micromanagement, asymmetric mechanics, and that focuses on you as the emperor.

Horizon builds on popular 4x Turn Based space strategy games to bring an evolved game of exploration and conquest with open space navigation and tactical ship combat.

Star Ruler is a large scale, real-time grand strategy set in space. Design, build, and take control of potentially thousands of ships, and expand the reach of your empire across the entire galaxy. Research new technologies, capture enemy vessels, and conquer enemy planets on your path to galactic domination. Chat with other players at any time to discuss strategies or arrange multiplayer games.

Star Traders 4X Empires is a civilization building game based on the Star Traders RPG. Discover more than 100 lost technologies, upgrades, and ship components as you reclaim the Star Traders’ heritage and discover the future.