Games like Star Ruler 2 on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Star Ruler 2 are available at the bottom of the page.
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Galactic Civilizations III
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.
DG2: Defense Grid 2
Setting the bar as the definitive tower defense game, Defense Grid 2 introduces new worlds and threats to test your tower placement strategies. With a bold new look and the addition of new game modes, player-versus-player and multiplayer co-op, every play brings fun new opportunities and challenges.
Planets Under Attack
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.
Sword of the Stars: Complete Collection
Sword of the Stars: Complete Collection is the original Sword of the Stars games and the three expansions Born of Blood, A Murder of Crows and Argos Naval Yard. It is the year 2405, and human scientists have discovered a new technology that allows travel from star to star at speeds faster than light.
Gratuitous Space Battles
Who 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.
Nexus - The Jupiter Incident
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
Natural Selection 2
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
Space Empires V
Space Empires V is the latest edition in the Space Empires series. This new chapter completely updates the UI and takes the player into a real-time rendered 3D universe. Watch space battles played out in glorious detail and realistic effects. Expand, Explore, Exploit, and Exterminate in a huge living breathing galaxy.
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.
Solargene
Lead a space corporation in the sci-fi simulator Solargene! Manage personnel, design and develop colonies and orbital stations throughout the solar system! Extract resources, establish logistics, research new technologies, trade and complete missions
Dune: Spice Wars
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.
The Pegasus Expedition
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.
Dyson Sphere Program
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Taur
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
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!
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.
MarZ: Tactical Base Defense
Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.
Halcyon 6: Starbase Commander (LIGHTSPEED EDITION)
A retro space strategy RPG with base building, deep tactical combat, crew management and emergent storytelling. Halcyon 6: Lightspeed Edition is a massively enhanced version of the Award Winning indie strategy RPG, Halcyon 6.
Industries of Titan
Create a sprawling industrial city. Compete with other rival corporations on Titan for resources, territory, and power. Seek victory via technology, influence, warfare, or the wealth extracted from your citizens. Stake your claim to the Industries of Titan in this innovative sim/strategy game!
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.
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.
Master of Orion 1
Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge.
Planetbase
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.Most played games like Star Ruler 2 on Steam
Take a look at the top games like Star Ruler 2 that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Stellaris
Similarity 82% 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. Stellaris is a space, grand strategy and strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on May 09th 2016 has received 182,155 reviews of which 157,931 were positive and 24,224 were negative resulting in a rating of 8.6 out of 10. The game has hit the top spot as the #1 most played game like Star Ruler 2, thanks to its 8,932 peak concurrent players over the last day.
8.6
157,931
24,224
8,932
players
2. STAR WARS™ Empire at War - Gold Pack
Similarity 93% Command or corrupt an entire galaxy in the definitive Star Wars strategy collection. It is a time of galactic civil war. Will you take up the reins of the Rebellion, assume control of the Empire, or rule the Star Wars Underworld? STAR WARS™ Empire at War - Gold Pack is a strategy, rts and space game developed by Petroglyph and published by LucasArts, Lucasfilm and Disney. Released on May 25th 2010 has received 38,906 reviews of which 37,985 were positive and 921 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 1,923 players online at once in the last 24 hours, this game is currently ranked #2 among games like Star Ruler 2 based on player count.
9.6
37,985
921
1,923
players
3. Dyson Sphere Program
Similarity 79% Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire. Dyson Sphere Program is a automation, space and base-building game developed by Youthcat Studio and published by Gamirror Games. Released on January 20th 2021 has received 84,667 reviews of which 82,683 were positive and 1,984 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 1,702 players online at once in the last 24 hours, this game is currently ranked #3 among games like Star Ruler 2 based on player count.
9.6
82,683
1,984
1,702
players
4. Sins of a Solar Empire II
Similarity 93% Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics. Sins of a Solar Empire II is a space, strategy and 4x game developed by Stardock Entertainment and Ironclad Games Corporation and published by Stardock Entertainment. Released on August 15th 2024 has received 6,741 reviews of which 5,790 were positive and 951 were negative resulting in a rating of 8.3 out of 10. With 766 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Star Ruler 2.
8.3
5,790
951
766
players
5. Supreme Commander: Forged Alliance
Similarity 75% The last days of man are at hand.. Two years after the Infinite War the once great warring nations now lie in ruins, and humanity’s hope for a brighter future is nothing but a bitter memory. A new, seemingly unstoppable enemy, supported by the zealots of The Order, now seeks to eradicate mankind: UEF, Aeon Loyalist, and Cybran alike. Supreme Commander: Forged Alliance is a strategy, rts and sci-fi game developed by Gas Powered Games and published by Square Enix. Released on September 28th 2011 has received 13,403 reviews of which 12,982 were positive and 421 were negative resulting in an impressive rating of 9.4 out of 10. With 706 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Star Ruler 2.
9.4
12,982
421
706
players
6. ENDLESS™ Space 2
Similarity 99% 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? ENDLESS™ Space 2 is a strategy, space and sci-fi game developed by AMPLITUDE Studios and published by SEGA. Released on May 18th 2017 has received 22,121 reviews of which 18,469 were positive and 3,652 were negative resulting in a rating of 8.2 out of 10. With 414 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Star Ruler 2.
8.2
18,469
3,652
414
players
7. Master of Orion
Similarity 93% The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers. Master of Orion is a strategy, 4x and space game developed by NGD Studios and published by Wargaming Labs. Released on August 25th 2016 has received 7,898 reviews of which 6,060 were positive and 1,838 were negative resulting in a rating of 7.5 out of 10. With 284 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Star Ruler 2.
7.5
6,060
1,838
284
players
8. Sins of a Solar Empire®: Rebellion
Similarity 93% 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. Sins of a Solar Empire®: Rebellion is a management, diplomacy and online co-op game developed by Stardock Entertainment and Ironclad Games Corporation and published by Stardock Entertainment. Released on June 12th 2012 has received 15,980 reviews of which 14,889 were positive and 1,091 were negative resulting in an impressive rating of 9.1 out of 10. With 278 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Star Ruler 2.
9.1
14,889
1,091
278
players
9. Creeper World 4
Similarity 75% 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. Creeper World 4 is a tower defense, wargame and real time tactics game developed and published by Knuckle Cracker. Released on December 03rd 2020 has received 4,325 reviews of which 4,115 were positive and 210 were negative resulting in an impressive rating of 9.2 out of 10. With 242 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Star Ruler 2.
9.2
4,115
210
242
players
10. Dune: Spice Wars
Similarity 79% 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. Dune: Spice Wars is a management, singleplayer and sci-fi game developed by Shiro Games and published by Shiro Games and Funcom. Released on September 14th 2023 has received 12,413 reviews of which 9,883 were positive and 2,530 were negative resulting in a rating of 7.8 out of 10. With 234 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Star Ruler 2.
7.8
9,883
2,530
234
players
Best deals on games like Star Ruler 2 on Steam
Discover fantastic savings with the best discounts on a variety of games like Star Ruler 2 available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Star Ruler 2.
1. Homeworld: Deserts of Kharak
Similarity 75% A ground-based RTS prequel to the classic Homeworld games. Assemble your fleet and lead them to victory on the shifting sands of Kharak in this compelling strategy game for PC from Blackbird Interactive. Homeworld: Deserts of Kharak is a strategy, rts and sci-fi game developed by Blackbird Interactive and published by Gearbox Publishing. Released on January 20th 2016 has received 8,484 reviews of which 6,772 were positive and 1,712 were negative resulting in a rating of 7.8 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Star Ruler 2.
7.8
6,772
1,712
-95%
45.00€
2.25€
2. Distant Worlds: Universe
Similarity 96% 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. Distant Worlds: Universe is a strategy, 4x and space game developed by Code Force and published by Slitherine Ltd.. Released on May 23rd 2014 has received 1,816 reviews of which 1,376 were positive and 440 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 92% discount, this game is now the #2 best deal in games like Star Ruler 2.
7.3
1,376
440
-92%
28.00€
2.24€
3. Planets Under Attack
Similarity 82% Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies. Planets Under Attack is a strategy, indie and space game developed by Targem Games and published by TopWare Interactive. Released on September 27th 2012 has received 1,114 reviews of which 806 were positive and 308 were negative resulting in a rating of 7.0 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like Star Ruler 2.
7.0
806
308
-92%
12.50€
1.00€
4. Battlezone: Combat Commander
Similarity 75% Battlezone: Combat Commander remasters FPS-RTS classic Battlezone II with slick new visuals, brand new achievements, Steam Workshop support and much more! The solar system is at war. Take command. Battlezone: Combat Commander is a strategy, action and rts game developed by Big Boat Interactive and published by Rebellion. Released on March 01st 2018 has received 872 reviews of which 784 were positive and 88 were negative resulting in a rating of 8.5 out of 10. Currently offered at a significant 90% discount, this title has earned the #4 position in the best deals for games like Star Ruler 2.
8.5
784
88
-90%
20.60€
2.06€
5. Battlezone 98 Redux
Similarity 75% One of the greatest sci-fi strategy games of all time returns with remastered visuals, online multiplayer and near unlimited mod content from Steam Workshop. Experience thrilling first person action and acclaimed RTS in this explosive alternate vision of the 1960s space race. Battlezone 98 Redux is a strategy, action and first-person game developed by Big Boat Interactive and published by Rebellion. Released on April 18th 2016 has received 1,054 reviews of which 966 were positive and 88 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 89% discount, this title has earned the #5 position in the best deals for games like Star Ruler 2.
8.7
966
88
-89%
20.00€
2.20€
6. Imperium Galactica II
Similarity 75% Reintroducing a classic from the golden era of gaming, the original empire building space RTS, Imperium Galactica 2 is back and looking better than ever with new high-res textures and vivid colors. Imperium Galactica II is a strategy, space and 4x game developed by Digital Reality and Gyroscope Games and published by THQ Nordic. Released on January 19th 2017 has received 582 reviews of which 507 were positive and 75 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 88% discount, this title has earned the #6 position in the best deals for games like Star Ruler 2.
8.2
507
75
-88%
10.25€
1.23€
7. X3: Reunion
Similarity 79% 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. X3: Reunion is a space, simulation and strategy game developed and published by Egosoft. Released on July 21st 2006 has received 684 reviews of which 493 were positive and 191 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 85% discount, this title has earned the #7 position in the best deals for games like Star Ruler 2.
6.9
493
191
-85%
9.73€
1.46€
8. Shadow Empire
Similarity 82% 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. Shadow Empire is a strategy, simulation and 4x game developed by VR Designs and published by Slitherine Ltd.. Released on December 03rd 2020 has received 1,444 reviews of which 1,257 were positive and 187 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 83% discount, this title has earned the #8 position in the best deals for games like Star Ruler 2.
8.3
1,257
187
-83%
39.53€
6.72€
9. Drone Swarm
Similarity 79% Drone Swarm is a very unique take on tactical games. Control 32,000 drones in quick, fast-paced fights. Combine your swarm abilities and counter constantly evolving attacks of your opponents. Survive varying enemy waves, get upgrades to your swarm, and make it to the next system alive! Drone Swarm is a sci-fi, action and real time tactics game developed by stillalive studios and published by astragon Entertainment. Released on October 20th 2020 has received 320 reviews of which 202 were positive and 118 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 83% discount, this title has earned the #9 position in the best deals for games like Star Ruler 2.
6.1
202
118
-83%
17.47€
2.97€
10. Battlefleet Gothic: Armada 2
Similarity 75% Battlefleet Gothic: Armada 2 is the new real-time strategy game adapted from Games Workshop’s famous tabletop game that portrays the epic space battles of the Warhammer 40,000 universe. Battlefleet Gothic: Armada 2 is a space, strategy and warhammer 40k game developed by Tindalos Interactive and published by Focus Entertainment. Released on January 24th 2019 has received 9,996 reviews of which 7,508 were positive and 2,488 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 82% discount, this title has earned the #10 position in the best deals for games like Star Ruler 2.
7.4
7,508
2,488
-82%
19.89€
3.58€
Free games like Star Ruler 2 on Steam
Check out this fantastic list of free-to-play games like Star Ruler 2 you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Star Ruler 2.
1. Pixel Starships
Similarity 82% Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven. Pixel Starships is a sci-fi, space and strategy game developed and published by SavySoda. Released on May 23rd 2023 has received 2,699 reviews of which 1,985 were positive and 714 were negative resulting in a rating of 7.1 out of 10. With 138 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Star Ruler 2.
7.1
1,985
714
138
players
2. Hades' Star
Similarity 99% A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a free to play, space and strategy game developed and published by Parallel Space Inc. Released on February 27th 2019 has received 2,561 reviews of which 1,864 were positive and 697 were negative resulting in a rating of 7.1 out of 10. Thanks to its free to play tag and a daily player base of 108, this game has secured the #2 spot in the ranking of free games like Star Ruler 2.
7.1
1,864
697
108
players
3. Planet S
Similarity 82% 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. Planet S is a strategy, city builder and multiplayer game developed and published by Glimmerlight Games. Released on October 28th 2023 has received 2,579 reviews of which 2,364 were positive and 215 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #3 spot among the most played free games like Star Ruler 2.
8.8
2,364
215
9
players
4. Istrolid
Similarity 82% 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. Istrolid is a free to play, building and strategy game developed and published by treeform. Released on May 06th 2016 has received 2,660 reviews of which 2,324 were positive and 336 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #4 spot among the most played free games like Star Ruler 2.
8.4
2,324
336
4
players
5. Galcon 2: Galactic Conquest
Similarity 99% Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game! Galcon 2: Galactic Conquest is a free to play, strategy and indie game developed and published by Hassey Enterprises and Inc.. Released on December 05th 2014 has received 858 reviews of which 718 were positive and 140 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #5 spot among the most played free games like Star Ruler 2.
7.9
718
140
2
players
6. Gods and Idols
Similarity 99% 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. Gods and Idols is a free to play, 4x and god game game developed and published by Viking Tao. Released on December 12th 2016 has received 758 reviews of which 532 were positive and 226 were negative resulting in a rating of 6.7 out of 10. The game currently holds the #6 spot among the most played free games like Star Ruler 2.
6.7
532
226
1
players