Top similar games like Relentless Expanse:

A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.

Outscape is everything you love about traditional strategy games, but places your empire within a vast online galaxy alongside other real players. Outscape rewards skillful long-term strategic gameplay with a brilliantly refreshing new take on the 4X genre.

Metal Mars is a real time strategy game where you race to gather resources and build on mars! This game can be played locally with a shared screen with up to three friends (4 players total). There are also 30 challenges to complete against the CPU!

Engage in real-time battles with customizable space warships. Explore the galaxy, forge alliances, develop powerful ships, and defeat alien invaders.

Space strategy gaming reimagined. Dive into fast-paced real-time planetary battles against the backdrop of a turn-based campaign that sees you build your empire in the stars. With hundreds of troops and ships at your command, can you forge an empire that lasts?

Amidst powerful alien empires, you are among the first humans in this corner of the procedurally generated galaxy. Trade and explore. With no combat, your success hinges on mastering complex alien economies and navigating intricate politics. Can you carve out a place for humanity in the cosmos?

Become a space baron in the great 22nd-century Nuice rush! Manage your cash flow, discover buried treasures, capitalize on electromagnetic storms and launch attacks at your competitors to maximize your profits in this sci-fi management game.

Turn-based strategy in a space Sci-Fi setting. Capture star systems, fight in tactical battles on hexagonal maps, upgrade your mother ship, discover new technologies and conquer the entire galaxy!

Grey Galactic is a real time strategy game in space where you build up your planets and ships to conquer your enemies. Develop your empire and fleet of spaceships to destroy your enemies and take over the galaxy! Do you have what it takes to become the best Fleet Captain the UFMC has ever seen?

Take control of any nation and shape its future. Manage resources, trade, and taxes, engage in real-time warfare, navigate global diplomacy, and react to dynamic world events. Build a thriving economy, forge alliances, and command armies in a constantly evolving world!

PlanetX is a real-time strategy MMO set on a spherical planet. Players expand territories, construct buildings, and manage resources to develop their empire. The ultimate goal is to conquer the entire planet by claiming all land plots and outpacing rivals in strategic growth and domination.

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.

Rise to power as any modern day country in a realistic military, political and economic simulation. Command your country's diplomacy, espionage, and resource management to strengthen your position. Use real-time tactical control of your military to fortify your place as the Supreme Ruler.

Chromatic Odyssey is a real-time strategy roguelike where you command a rising Type II civilization. Conquer territories, harness advanced technology, and adapt to procedurally generated challenges. Deploy powerful abilities and shape the fate of your empire in an ever changing galaxy.

Wage war across entire solar systems with massive armies at your command. Annihilate enemy forces with world-shattering TITAN-class units, and demolish planets with massive super weapons!

The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground.

Expansion is a sci-fi Action RTS where deck-building strategy meets fast-paced VR duels — battle AI or challenge real players.

Geopolitical management game with real-time shifting borders and a streamlined gameplay, designed to minimize all burdensome chores while allowing an absolute strategic control, from military recruitment and deployment, to diplomatic and economic management.

Ascendance is a real-time space strategy game that sees you lead your civilisation into a vast and mysterious galaxy. Experience an immersive journey with detailed civilisations, deeply-simulated economies, internal politics, nuanced diplomacy, and intense space battles.

AfterWar is a strategy about the world in 2028

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.

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!

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.

Firefight is a World War II real-time simulation game similar in style to the old Close Combat series but brought up to date with better AI, individual soldier modelling, a faster frame rate to give more intense and realistic combat and an easy to use command interface.

Build your galactic empire, conquer planets and emerge as the last player standing in this real-time strategy game.

Save humanity from the brink of extinction in this sci-fi strategy game of survival. Travel among the stars to seek out resources, establish and develop colonies to sustain civilization, and grow your military might to push back against an overwhelming threat.

A casual planet-conquering strategic game that in its simplicity offers great complexity and numerous game modes like tournaments, campaigns, online/LAN play, and much more! Bundled with a multitude of AI bots, maps and missions. Prepare for hours of fun! :-)

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.

The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.

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.

HexTD is a tower defense game where players can choose from 3 classes to defend their base. Deploy your machines, soldiers or elementals to create the enemies path and guard against powerful bosses, playing solo or with a friend to create a new experience in tower defense genre.

Space 4X game with the ability to build factories, extract resources, with characters, internal and external markets ... Take part in the discussion of the game, share your vision)

MMO Real-time strategy star game.

Trade, Build, Spy, Negotiate, and Battle for total control of the galaxy's riches. Become the backbone of galactic commerce in a grand strategy universe ripe with opportunity for exploitation and conquest.

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.

Experience epic, fast, truly tactical space combat against other players.