The Last Federation

'You are outgunned. You are massively outnumbered. You must win.' These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...

Stranded on Mars with next to nothing, build a city, assemble a fleet, and expand your empire to survive a hostile solar system in this new take that combines elements of space combat and RTS inspired by the classics.

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?

A turn-based grand strategy game in space, set in the near future: Defend Earth against an alien invasion from the edge of the Solar System and expand your campaign to push them back to their base.

In this sci-fi strategy game, the Solar System of 4,000 A.D. is ravaged by wars between humanity's planetary colonies. These wars are directed by Supremes - the autocrat leaders of the planets. But each leader needs an advisor, and this is where you step in. Can you guide your ruler to victory?

Take command of a vast interstellar empire and safeguard your species from total extinction in a procedurally generated 3D galaxy (with the option to flatten it) from 1 System to 10,000+! Prove your species' ingenuity through a deep and intricate combat system where anything (from individual components on ships to the stars themselves)...

Fight on the ground and in space around 17 different bodies in our solar system with unique lite orbital mechanics. Recruit armies, build fleets, and conquer the solar system as one of three unique factions in this turn based strategy game!

Endless Space is a turn-based 4X strategy game, covering the space colonization age in the Endless universe, where you can control every aspect of your civilization as you strive for galactic domination.

Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.

Final Theory is a 4X-lite turn-based strategy game where you command fleets of battleships engaged in a galactic civil war. It presents an exciting experience for both veteran players and those new to the genre. It features innovative combat mechanics but also hearkens back to some of the classics.

Travel a hundred years into the future to command an advanced space fleet in full 3D turn-based tactical space combat through the greatest conflict humankind has ever known. Protect the Sky!

AT THE LIMITS OF EARTH, AT THE EXTREMITY OF HEAVEN. A REAL-TIME STRATEGY NIGHTMARE.

Tactical story-driven online multiplayer game combining the turn-based combat of X-COM with a deep, well-grounded sci-fi setting. Experience intense tactical online multiplayer action and explore a deep plot and unique storyline built on both single-player and multiplayer missions.

Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!

Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.

Battlezone: Combat Commander remasters FPS-RTS classic Battlezone II with slick new visuals, brand new achievements, Steam Workshop support and much more! The solar system is at war. Take command.

Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.

Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.

Tachyon Wars is a sci-fi real-time space strategy game. It introduces seriously deep gameplay with an emphasis on fleet control. Open space to explore, large-scale battles, crafty AI. All of it is well seasoned with novel real-time game mechanics.

Solar Struggle is an arcade space shooter with a thrilling story and a challenging skirmish mode.