Top similar games like Mayhem Intergalactic:

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

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!

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.

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.

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.

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.

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.

Mini Gal4Xy is a light strategy game set in space.

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.

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.

From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.

Capture and upgrade planets, outsmart your enemies, and conquer the galaxy! Simple yet addicting, you can play alone or outsmart your friends in this 2D top-down space RTS. Completely free, no monetization, just fun!

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.

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. 🚀

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.

Empis is a turn-based strategy game that focuses on short and sweet multiplayer matches. Choose from individual factions each with their own unique units and upgrades, unlock technology, and build sprawling cities with buildings and fortifications.

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!

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.

Warbits+ is a charming turn-based strategy game where victory is achieved through tactics and determination. Compete with your friends locally and online, hone your skills with single-player missions, or battle for glory against other commanders on the community hub.

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.

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.

In Battlestar Galactica Deadlock™ you’ll take command of the Colonial Fleet in defense of the Twelve Colonies during the First Cylon War. Lead many different types of ships in this 3D tactical game. Every decision counts, your strategy will be vital – can you ensure mankind’s survival?

Field Tactics is a Turn-Based Tactical War Simulator inspired by ancient warfare. Set up your formations, utilise a variety of tactics and lead your army to victory.

Planeticus offers to conquer new planets in the company of friends or strangers. The essence of the game is to capture planets, manage resources, create as many of your own super planets as possible and generate space invaders.

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

ENDLESS™ Space 2 is a Strategic Space Opera, featuring the compelling “just one more turn” gameplay, set in the mysterious ENDLESS™ Universe. As the leader of your civilization, will you impose your vision and build the greatest stellar empire?

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?

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!

BAFTA award winning fleet-based RTS meets rogue-lite. In Distant Star: Revenant Fleet, build your fleet of up to 5 ships from a choice of 8 classes and traverse a randomly generated galaxy to defeat the Erebus Platform. NOW AVAILABLE ON MAC AND LINUX

The hungry Gooper swarm threatens intergalactic peace. Stop them! Build towers around planets and take control over their orbits. Spin them with all you’ve attached! Collect new towers, powers and upgrades to beat the onslaught of goopers and save the galaxy in this colorful Tower Defense Roguelite!

A graphical multi-player play by turn war game that simulates combat in space between galactic empires.

Set the world ablaze in Fire Isle! Choose your fire —Happy, Sad, Angry, or Grumpy— and vs. your friends online to see who can scorch the most of a tropical paradise. Keep your flames alive as rising costs, rainstorms, and other fires try to snuff you out. Can you conquer the Isle?

A multiplayer, tactical, real-time strategy with spaceships

MMO Real-time strategy star game.

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.

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.