Top similar games like Lord of Rigel:

Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.

Conquer a vast procedurally generated star system in Falling Frontier, a sci-fi RTS where intel and logistics are decisive factors. Design ships and raid enemy supply lines, lay minefields and construct recon stations, and ambush enemy forces within asteroid fields and nebulae.

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.

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.

Take the helm of a state-of-the-art warship as you fight epic space battles in a sandbox campaign. Upgrade and customize your ship, master the art of maneuvering, and use a blend of tactical prowess and heavy firepower to overcome deadly threats.

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?

Gate Builders is a sci-fi turn-based 4X strategy game. Build space stations, manage work force, exploit, trade and transform resources. Face space pirates and enemy factions. Build, Expand, Thrive!

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!

Alliance of the Sacred Suns is a sci-fi grand-strategy RPG that begins with your coronation as the head of an interstellar Empire, and ends with your demise. Manage feuding noble houses and the schemes of would-be usurpers as you try to revive the glory of an Empire on the brink of collapse.

HARD VOID is a 4X turn-based space strategy game in a lovecraftian universe. Lead your species across galaxies and multiple dimensions to build an Empire. Design your spaceships, assemble your fleets and fight for supremacy. But beware, unthinkable Eldritch horrors lurk in the vast darkness.

Create a Company, Build structures, Collect Resources, Make Investments and Speculate on Assets. Carefully manage your Workforce, Finances, Resources, Shareholders, BOD & Political Partnerships.

Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.

Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.

Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience.

Existence is a strategy game on a massive scale. Lead your expanding empire, explore the galaxy, and master simultaneous space and planetary battles. Engage in solo play or team up with friends for intense PvP and co-op action.

Unique combination of turn-based 4X and historical grand strategy with a mythological twist. Explore the ancient world and build a world leading civilization. Survive, expand, conquer... and win!

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.

Beyond Astra is a real-time 4X sci-fi grand strategy game set in a galaxy brimming with life and intrigue. Expand your own civilization, explore captivating and mysterious worlds, interact with your citizens and other life forms and shape your destiny through nearly infinite possibilities.

Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.

Great Houses of Calderia is a Feudal Grand Strategy game focusing on family dynamics & stories. Use your family strengths to compete against rivals to rise in the ranks of Calderia - produce, trade, scheme, bribe, and battle to build your legacy of power!

Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?

Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.

Get the complete GalCiv II saga including Galactic Civilizations II: Dread Lords, the expansion pack Dark Avatar, and the newest expansion pack Twilight of the Arnor!

It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!

Indie 4X space strategy game with TB empire management and RTS combat set in a 3D star cluster. Build an interstellar empire by colonizing and conquering star systems, develop your colonies establish trade routes and construct fleets from a range of retrofittable capital & escort class vessels.

A sci-fi, 4X, real-time strategy game. Build, fight, and explore to survive against an unstoppable alien threat. Carry the fight from one galaxy to the next as you battle back from the brink of extinction, and unlock the secrets of the past to restore your people to the path of galactic super power.

Asymmetric space empire builder where you feel like the Emperor, not a logistics officer. No micromanagement, grand scale, fast paced, audiences, assassins, imperial court, disloyal admirals.

Play campaign stories within the Galactic Ruler universe. Invade the galaxy to eliminate those who stand in your way or rally alien races to defend against the invaders. Fight battles at both planet and space across a procedurally generated galaxy. Use new unit control systems to manage your forces.

Take up the reins of your country, guide domestic and foreign policy, navigate thousands of historical figures and events, engage in various struggles and lead your country to prosperity – all in the name of glory!

Command an interstellar empire in this 4x grand strategy game and direct your civilization's development through the cosmos. Expand into the galaxy, colonize star systems, exploit resources, and build your empire to greatness. Care for your citizens with benevolence or rule with military conquest.

Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.  

Manage an interstellar spy business in this turn-based strategy game with 90-minute runs. Explore a random universe, expand your espionage network, exploit weaknesses in corporate information security, and exterminate companies by strategic sale of their information to the competition.

Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.

Create your own nation in Millennia, a historical turn-based 4X game that challenges your strategic prowess across 10,000 years of history, from the dawn of humanity to our possible futures.

The Pegasus Expedition is a story-driven sci-fi grand strategy game set in a key moment for humankind’s survival. Facing an overwhelming threat at home, humanity sends expeditions to the Pegasus Galaxy in a desperate attempt to find a refuge for the population of Earth.

AEU is a fast paced realtime strategy and 4x hybrid. Players influence their empire to grow, fight, forge alliances or engage in trade. Players are given control over the empire's traits, research and a set of three types of abilities(Construction, Plagues and Agents) to accomplish their goals.