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Games like Star Ruler 2 on Steam

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Starpoint Gemini Warlords Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
Similarity 62%
Price -96% 1.49€
Rating 7.0
Release 23 May 2017
Polaris Sector Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.
Similarity 62%
Price -68% 12.56€
Rating 6.7
Release 22 Mar 2016
Nexus Legacy Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.
Similarity 62%
Price Free to play
Rating 6.4
Release 05 Jun 2026
Breachway 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.
Similarity 62%
Price -71% 5.89€
Rating 7.3
Release 26 Sep 2024
Particle Fleet: Emergence Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.
Similarity 61%
Price -25% 11.20€
Rating 8.7
Release 29 Sep 2016
Star Trek Timelines Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek.
Similarity 61%
Price Free to play
Rating 6.4
Release 12 Jul 2017
X: Beyond the Frontier The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
Similarity 60%
Price -83% 0.85€
Rating 7.0
Release 08 Oct 2010
Children of a Dead Earth The most scientifically accurate space warfare simulator ever made. Now with Steam Workshop!
Similarity 60%
Price 19.50€
Rating 8.5
Release 23 Sep 2016
Gods and Idols Take the role of a newly ascended deity in Gods and Idols. Carve your place among the stars in an open, dynamic, and massive MMORTS universe. Command the powers of the cosmos, form alliances, and use your worshipers as instruments to further your goals.
Similarity 60%
Price Free to play
Rating 6.6
Release 12 Dec 2016
X3: Reunion X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Similarity 60%
Price -91% 0.96€
Rating 6.9
Release 21 Jul 2006
Galaxy Squad Galaxy squad is a hardcore turn-based tactical roguelike, inspired by FTL and XCOM.
Similarity 59%
Price -55% 4.41€
Rating 7.0
Release 15 Jul 2019
Age of Wonders: Planetfall 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.
Similarity 59%
Price -82% 5.51€
Rating 7.8
Release 06 Aug 2019
Crying Suns Crying Suns is a tactical rogue-lite that puts you in the role of a space fleet commander as you explore a mysteriously fallen empire. In this story rich experience inspired by Dune and Foundation, each successful run will uncover the truth about the Empire... and yourself as well.
Similarity 59%
Price -96% 1.01€
Rating 8.2
Release 18 Sep 2019
Planet S Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.
Similarity 58%
Price Free to play
Rating 8.8
Release 28 Oct 2023
Orbitmine Orbit a planet, fire your laser, and mine it to the core. Upgrade your ship and conquer seasonal hazards across four unique zones. A satisfying incremental mining game set in space.
Similarity 58%
Price 2.99€
Rating 7.7
Release 06 Apr 2026
Gratuitous Space Battles The first ever auto-battler game, from way back in 2009Who needs backstory? Who needs resource-gathering? Diplomacy is so last year. Gratuitous Space Battles cuts right to the chase of sci-fi strategy games, and deals with large, completely unjustified space battles between huge opposing space fleets.
Similarity 58%
Price -88% 1.92€
Rating 6.9
Release 16 Nov 2009
Istrolid In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
Similarity 57%
Price Free to play
Rating 8.3
Release 06 May 2016
Space Rogue Take on the role of a spaceship captain. Explore new worlds, and engage in intense ship-to-ship battles. Develop unique battle tactics, upgrade your ship, and recruit crew members as you fight for peace or piracy.
Similarity 57%
Price -57% 4.36€
Rating 6.2
Release 15 Sep 2016
Shadow Empire Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features. Players take the seat of the supreme ruler of a small nation, with the goal of reconquering a devastated planet.
Similarity 57%
Price -80% 8.08€
Rating 7.8
Release 03 Dec 2020
Anno 2205 In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
Similarity 57%
Price 39.99€
Rating 6.8
Release 02 Nov 2015
Aeon Command Aeon Command is a tug of war strategy game, where you play as one of three unique factions to help gain dominance over the Aeon Nebula! Take control of your mother ship to gather resources, produce ships and fight off the enemy mother ship. Grow stronger as you progress through the 24 mission campaign and unlock new upgrades.
Similarity 57%
Price -47% 1.60€
Rating 7.4
Release 03 Jul 2014
Space Run Galaxy Space Run Galaxy is the sequel to Space Run, the game from one-man studio Passtech, which seduced hundreds of thousands of players with its dynamic and original gameplay. By twisting the tower-defense game style, Space Run offered an addictive real-time spaceship construction strategy experience.
Similarity 57%
Price -97% 0.39€
Rating 6.6
Release 17 Jun 2016
Codex of Victory In this sci-fi turn-based strategy with real-time base-building elements, you’ll be defending human territories against the transhuman Augments. Expand your HQ, and manufacture and upgrade an army of advanced drones to wage interplanetary war for Humanity!
Similarity 57%
Price -95% 0.86€
Rating 6.6
Release 16 Mar 2017
Out There: Ω Edition Out There is an award-winning space exploration game blending roguelike, resource management and interactive fiction.
Similarity 56%
Price -78% 3.38€
Rating 7.3
Release 02 Apr 2015
Space Pirates and Zombies Explore a randomly generated Galaxy populated with factions, enemies, missions, and items providing you with a unique experience each time you play.
Similarity 56%
Price -64% 3.67€
Rating 8.7
Release 15 Aug 2011
Grey Goo Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.
Similarity 55%
Price -84% 4.71€
Rating 6.6
Release 23 Jan 2015
Battlevoid: Harbinger Battlevoid: Harbinger is a hard sci-fi space exploration game blending roguelike, turn-based, star map strategy, and real-time space battles. You are a young commander venturing out into enemy territories, to unknown galaxies, never knowing what you will face as you jump out from hyperspace.
Similarity 55%
Price -85% 1.53€
Rating 7.5
Release 24 Feb 2016
Shortest Trip to Earth Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat.
Similarity 55%
Price -92% 2.15€
Rating 7.4
Release 15 Aug 2019
Final Theory 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.
Similarity 55%
Price 14.99€
Rating 7.4
Release 21 Sep 2018
Iron Marines Real-time strategy battles in amazing sci-fi worlds! Command brave soldiers, mighty mechas and powerful aliens to face the greatest challenges in hostile alien worlds. The galaxy needs you!
Similarity 55%
Price -41% 7.38€
Rating 7.5
Release 15 May 2019
Space Pirates And Zombies 2 Design and then improve the ultimate mothership. Explore a persistent living galaxy populated by 200 unique captains that can do everything you can do. Survive the zombie infection and then fight them back. Make allies and start your own faction. Build your empire. Also includes Sandbox Mode.
Similarity 54%
Price 19.99€
Rating 7.6
Release 07 Nov 2017
Terraforming Mars The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.
Similarity 54%
Price -92% 1.71€
Rating 6.9
Release 17 Oct 2018
The Last Starship The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Similarity 54%
Price 19.99€
Rating 7.2
Release 03 Feb 2026
X3: Terran Conflict 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!
Similarity 53%
Price -92% 1.30€
Rating 8.2
Release 16 Oct 2008
Sol 0: Mars Colonization Sol 0 is a real time strategy game where you establish the first Martian colony. From the first human footprints on Martian soil to a thriving and self-sustaining colony, Sol 0 imagines a near future using technology that could be available within the next few decades.
Similarity 53%
Price 0.99€
Rating 6.6
Release 15 Jan 2016
Space Crew: Legendary Edition Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew!
Similarity 53%
Price -95% 0.93€
Rating 7.4
Release 15 Oct 2020