Top similar games like Mayhem Intergalactic:

This is a 4x turn-base strategy game. You can develop your planet, expand your territory by colonizing and building space stations, research technology to unlock more ships, and ultimately discover and eliminate your enemies.

Conquer the galaxy and defeat the mysterious elder race in this amazing 2D turn-based strategy game. To do this, you will have to build your fleets with different ships equipped with modules of your choice. Your conquest will be supported by special game cards different for each race.

Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders series, bringing all the exciting tactical turn-based combat and in-depth empire building of its predecessors to space in an all-new, sci-fi setting.

Dive into a top-down, turn-based strategy game with 80's sci-fi flair. Command elite soldiers in multiplayer duels on 24 maps, local hot-seat mode, or a thrilling singleplayer campaign. Master teleportation and gridless movement on the mysterious planet Anthracite.

SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat.

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.

Mini Gal4Xy is a light strategy game set in space.

Take command of humanity’s last survivors and rebuild an empire in the stars. In this immersive turn-based strategy game, you will have to fight to protect your people, control rival factions, and unlock lost technology.

Vae Victis is a ruthless minimalistic turn-based strategy game. Engage in intense multiplayer battles with friends or fight through an expansive campaign. With unique units, factions, and abilities you will have to be cunning with your tactical decisions to claim victory!

A space exploration adventure in the purest tradition of roguelike. Featuring procedurally generated solar systems, perma-death and tactical turned-based gameplay!

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.

SSI's Sword of Aragon was one of the earliest precursors to the 4x genre and is widely regarded as one of the best 4X games ever made. Combining deep RPG character progression, military units, resource management, and a fun story, Sword of Aragon is a MUST have for any fan of the 4x genre!

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!

Turn-based space battle tactical/strategic game

An arcade style ship vs ship stealth battle. Find them before they find you. Destroy their ship before they destroy yours. Only skill will determine the victor.

Retro turn-based strategy in a sci-fi world of sinister alien invaders. Take command of troops, tanks and aircraft as you position your units for the perfect strike or unbreakable defense. Plot the course of humanity's war against the insidious Sectyd by choosing which missions to fight.

Dive into a world of retro-futuristic aesthetics and high-voltage gameplay in this innovative turn-based strategy game. Every turn unfolds with intriguing possibilities as players combine moves, creating unique and complex strategies on the electrifying hexagonal battlefield.

A sci-fi turn-based strategy game, no gimmicky mechanics just pure 4x glory.

Bend the rules of time to your whim to outsmart and out-think your opponents. Fun 4-player co-op strategy card-game which will leave you on the edge of your seat!

Refactor is a hard-core tower defense game that combines modular building, route planning, and element composition.

One part Minesweeper, one part Civilization. With every click of the mouse your empire grows stronger. But will it be strong enough to withstand the barbarian hordes?

Use your drone to lead tactical combat against elemental beasts infesting your faction. Assess the risks, coordinate attacks, optimize your equipment and become the agent who will put an end to the infestation!

In this game, you are a leader, leading a force of army to fight other forces in the deep spaces. You will plunder their resources, build your homelands, explore and expand, managing your army both strategically and tactically. This will be a saga written with blood and fire.

Build a civilization that will stand the test of time in the largest space-based strategy game ever! Choose from dozens of unique races and make a name for yourself across the galaxy through diplomacy, espionage, technological advances, and more.

A real-time strategy combat game based on the world of the Line Of Defense. Command a team of four Galactic Command marines in highly classified missions in space and on planets.

A multiplayer, tactical, real-time strategy with spaceships

Astra Exodus is a single player turn based Sci-fi 4X strategy game inspired by the classics, with a multiple choice narrative driven epic campaign, top down real time tactical battles and an extensive semi-randomized research grid.

Astraeus is a VR asteroid mining RTS game that's quick to play, easy to learn, and enormous in scope. Build a mining network from dozens of bases, and watch as hundreds of ships swarm around you.

Athena Crisis is a modern retro turn-based strategy game that places you in command of 40+ units in your journey across the multiverse. Embark on a challenging single-player quest or dive into the thrill of ranked or casual multiplayer modes to become the best Athena Crisis player!

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.

MIND MAZE - is a logical competitive game based on capturing of the playing field.

Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.

Galactic Civilizations is a space based strategy game in which you are in control of humanity's destiny.

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.

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

A tactical, turn-based strategy game for solo or multiplayer play, lasting about an hour or two. Easy to learn, difficult to master. Plan your moves, conquer your foes, and claim victory on a procedurally generated island kingdom. Fight for the throne or support your liege’s rise to power.