Top similar games like Fragile Allegiance:

Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation.

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Your prison ship has crash-landed on the fastest, sleekest, most dangerous 3D world ever created. Look around, crystal clear water shimmers, shadows dance and shift, alien architecture fades into the horizon.

A sci-fi real-time strategy game. An existential war among asteroids in classic RTS style. Build and defend, produce and upgrade, attack and annihilate!

One of the greatest sci-fi strategy games of all time returns with remastered visuals, online multiplayer and near unlimited mod content from Steam Workshop. Experience thrilling first person action and acclaimed RTS in this explosive alternate vision of the 1960s space race.

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.

Space adventure, open world RPG, strategy, arcade, quest and more!

You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.

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.

"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...

What began as a conflict over the transfer of consciousness from flesh to machines escalated into a war which has decimated a million worlds. The Core and the Arm have all but exhausted the resources of a galaxy in their struggle for domination.

Design and deploy your own robotic army, then watch them battle it out on their own. Set in a retro-futuristic sci-fi battleground, the action plays out autonomously as your robots clash and fight. It's like watching ant wars, reimagined with robots and laser weapons.

Join the rise of Darth Vader’s elite 501st Legion of Stormtroopers as you fight through an all new story-based saga where every action you take impacts the battlefront and, ultimately, the fate of the Star Wars galaxy.

Ancient Space is a story driven single player real time strategy game where you take command of a fleet embarking on a scientific mission to chart undiscovered reaches of space called ‘The Black Zone’. Overcome overwhelming odds and fight for your life and the survival of your ship and its crew.

Welcome to Descent™ - 27 levels of the most mind-bending, stomach-churning action game ever. Featuring true 3-Dimensional worlds and six degrees of freedom.

A faithful digital adaptation of the acclaimed board game Space Empires 4X by GMT Games, beloved by wargamers for almost two decades. Command the rise of your civilization and the fall of others, all in one to two hours.

The children of long-extinct humanity desperately search for the legendary artifact system of Sol. Search for Sol is a sci-fi 4X in the tradition of Reach for the Stars, Master of Orion, and Star Traders. Control Sol for 50 years to ascend to flesh once again.

Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.

Destroy. Salvage. Repair. Upgrade. PROFIT! A real-time tactical experience where you command your own mercenary outfit of mechs and mercs and adventure through randomly generated missions filled with rewards, glory, and bitter defeat.

Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."

Turn-based space battle tactical/strategic game

Behind a veil of secrecy the evil Empire is creating a doomsday army - one that, if finished, will become the final cog in the Empire's arsenal of terror and domination. Your Mission? Join the Rebel Alliance's covert operations division, infiltrate the Empire.

A pixel-art turn-based Galaxy total war game. You can select 14 factions, 61 heroes, hundreds of warships and mecha, and command multiple fleets to carry out grand strategic operations on the map of the galaxy.

This is a prologue for the main game Grimstar - a single-player real-time strategy game with a story-driven campaign. The sudden death of your brother has hit you hard. However, the corporation for which he has sacrificed his life requires you to take his place until his contract is fulfilled...

There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city.

Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld?

It's time to gear up!Get ready for more ghost chain gobbling and frantic action in PAC-MAN® CE-DX+! The award-winning chomping game makes a shattering debut on Steam with even more content and a refined user-interface to compare high scores with your friends!

In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.

A large-scale 4X strategy game with indirect control and a focus on simulating a space empire. Capture systems, develop your economy and logistics, call up hundreds of powerful fleets and watch them incinerate enemies of the Solar Empire.

Battlefleet Gothic: Armada is the RTS videogame adaptation of Games Workshop’s classic tabletop game, pitting the Chaos, Imperium, Eldar, and Orks against each other in visceral space-battles.

The war continues... X-COM: UFO Defense brought you to a galactic battlefield. X-COM: Terror from the Deep brings the alien terror into a totally new dimension.Seeking to take advantage of a weakened Earth, X-COM's deep space foes unexpectedly change strategy and launch a powerful second front against planet Earth.

For the first time in over 20 years, we are heralding the return of a much loved piece of gaming history with the classic RPG, Wasteland! Mutants. Again. Even more than there were last time: they seem to materialize out of the very grains of the radioactive desert sand. Venomous yellow eyes.

For a thousand years, three opposing forces have waged war for what they believe is true. There can be no room for compromise: their way is the only way. Dubbed The Infinite War, this devastating conflict has taken its toll on a once-peaceful galaxy and has only served to deepen the hatred between the factions.

Conquer the galaxy in this cinematic, battle-simulator. Each playthrough offering a completely unique galaxy, over 100 total specialized ships to command, and distinct commanders to lead your people. Pick your favorite faction and lead your forces into a dynamically generated battlefield.

This is the original Moon Tycoon city-building game back from 2001! Remember building vast lunar colonies, then destroying them with meteors and asteroids? Blast off again with the first 3D Sim game, back to the old days on the dark side of the moon. Feeling nostalgic?