Games like Sins of a Solar Empire II on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Sins of a Solar Empire II are available at the bottom of the page.
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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.
Mechabellum
Mechabellum is a rewarding tactical wargame where you gain victory by adapting your strategy and outthinking your opponents. Command a mechanized army in battles against humans or AI, customize your units and strategically place them on the battlefield to watch them destroy your enemies.
STAR WARS™ Rebellion
It is a time of great upheaval. The first Death Star has been destroyed, marking a major victory for the Rebellion. But the Empire remains strong. As commander, you must choose to take control of either the Rebel Alliance or the Galactic Empire. Your goal: complete domination of the galaxy.
Zero-K
With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.
Executive Assault
Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.Most played games like Sins of a Solar Empire II on Steam
Take a look at the top games like Sins of a Solar Empire II that are currently attracting the largest player bases on the Steam platform, as of April 26th 2025.
1. Age of Empires IV: Anniversary Edition
Similarity 51% Celebrating its first year of delighting millions of global players, the award-winning and best-selling strategy franchise continues with Age of Empires IV: Anniversary Edition, putting you at the center of even more epic historical battles that shaped the world. Age of Empires IV: Anniversary Edition is a strategy, rts and base-building game developed by Relic Entertainment, Forgotten Empires, Climax Studios and World's Edge and published by Xbox Game Studios. Released on October 28th 2021 has received 78,996 reviews of which 67,975 were positive and 11,021 were negative resulting in a rating of 8.5 out of 10. The game has hit the top spot as the #1 most played game like Sins of a Solar Empire II, thanks to its 9,228 peak concurrent players over the last day.
8.5
67,975
11,021
9,228
players
2. Age of Empires III: Definitive Edition
Similarity 51% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 47,640 reviews of which 40,279 were positive and 7,361 were negative resulting in a rating of 8.3 out of 10. While seeing 3,742 players online at once in the last 24 hours, this game is currently ranked #2 among games like Sins of a Solar Empire II based on player count.
8.3
40,279
7,361
3,742
players
3. Age of Empires II (Retired)
Similarity 50% Age of Empires II has been re-imagined in high definition. With the release of Age of Empires II: Definitive Edition, this product will not be updated further. Age of Empires II (Retired) is a strategy, rts and medieval game developed by SkyBox Labs, Hidden Path Entertainment, Ensemble Studios and Forgotten Empires and published by Xbox Game Studios. Released on April 09th 2013 has received 101,162 reviews of which 96,896 were positive and 4,266 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 2,753 players online at once in the last 24 hours, this game is currently ranked #3 among games like Sins of a Solar Empire II based on player count.
9.4
96,896
4,266
2,753
players
4. Mechabellum
Similarity 50% Mechabellum is a rewarding tactical wargame where you gain victory by adapting your strategy and outthinking your opponents. Command a mechanized army in battles against humans or AI, customize your units and strategically place them on the battlefield to watch them destroy your enemies. Mechabellum is a strategy, mechs and auto battler game developed by Game River and published by Dreamhaven. Released on September 26th 2024 has received 14,488 reviews of which 12,461 were positive and 2,027 were negative resulting in a rating of 8.4 out of 10. With 2,287 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Sins of a Solar Empire II.
8.4
12,461
2,027
2,287
players
5. Age of Mythology: Retold
Similarity 60% From the creators of the award-winning Age of Empires franchise, Age of Mythology: Retold goes beyond history to a mythical age where gods, monsters, and humans collide. Age of Mythology: Retold is a strategy, rts and base-building game developed by World's Edge, Forgotten Empires, Tantalus Media, CaptureAge and Virtuos Games and published by Xbox Game Studios. Released on September 04th 2024 has received 16,199 reviews of which 14,578 were positive and 1,621 were negative resulting in a rating of 8.8 out of 10. With 2,235 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Sins of a Solar Empire II.
8.8
14,578
1,621
2,235
players
6. STAR WARS™ Empire at War - Gold Pack
Similarity 69% 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 38,829 reviews of which 37,908 were positive and 921 were negative resulting in an impressive rating of 9.6 out of 10. With 1,941 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Sins of a Solar Empire II.
9.6
37,908
921
1,941
players
7. Northgard
Similarity 63% Northgard is a critically acclaimed strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne! Northgard is a strategy, city builder and simulation game developed and published by Shiro Games. Released on March 07th 2018 has received 64,201 reviews of which 55,565 were positive and 8,636 were negative resulting in a rating of 8.5 out of 10. With 1,862 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Sins of a Solar Empire II.
8.5
55,565
8,636
1,862
players
8. BATTLETECH
Similarity 51% Take command of your own mercenary outfit of 'Mechs and the MechWarriors that pilot them, struggling to stay afloat as you find yourself drawn into a brutal interstellar civil war. BATTLETECH is a mechs, strategy and turn-based tactics game developed by Harebrained Schemes and published by Paradox Interactive. Released on April 24th 2018 has received 31,367 reviews of which 26,263 were positive and 5,104 were negative resulting in a rating of 8.2 out of 10. With 1,662 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Sins of a Solar Empire II.
8.2
26,263
5,104
1,662
players
9. Empyrion - Galactic Survival
Similarity 55% Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion! Empyrion - Galactic Survival is a simulation, co-op and open world survival craft game developed and published by Eleon Game Studios. Released on August 05th 2020 has received 33,119 reviews of which 26,101 were positive and 7,018 were negative resulting in a rating of 7.8 out of 10. With 1,454 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Sins of a Solar Empire II.
7.8
26,101
7,018
1,454
players
10. Star Trek Online
Similarity 61% In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,043 reviews of which 15,849 were positive and 4,194 were negative resulting in a rating of 7.8 out of 10. With 1,059 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Sins of a Solar Empire II.
7.8
15,849
4,194
1,059
players
Best deals on games like Sins of a Solar Empire II on Steam
Discover fantastic savings with the best discounts on a variety of games like Sins of a Solar Empire II available on Steam right now, updated on April 26th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Sins of a Solar Empire II.
1. Warhammer 40,000: Gladius - Relics of War
Similarity 51% Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions. Warhammer 40,000: Gladius - Relics of War is a strategy, warhammer 40k and 4x game developed by Proxy Studios and published by Slitherine Ltd.. Released on July 12th 2018 has received 14,204 reviews of which 11,540 were positive and 2,664 were negative resulting in a rating of 8.0 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Sins of a Solar Empire II.
8.0
11,540
2,664
-95%
42.80€
2.14€
2. Ashes of the Singularity: Escalation
Similarity 51% A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat. Ashes of the Singularity: Escalation is a rts, base-building and pvp game developed by Stardock Entertainment and Oxide Games and published by Stardock Entertainment. Released on November 10th 2016 has received 4,742 reviews of which 3,530 were positive and 1,212 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 94% discount, this game is now the #2 best deal in games like Sins of a Solar Empire II.
7.3
3,530
1,212
-94%
29.17€
1.75€
3. Distant Worlds: Universe
Similarity 53% 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 #3 best deal in games like Sins of a Solar Empire II.
7.3
1,376
440
-92%
28.00€
2.24€
4. Battlezone: Combat Commander
Similarity 57% 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 Sins of a Solar Empire II.
8.5
784
88
-90%
20.60€
2.06€
5. I am not a Monster: First Contact
Similarity 57% Retro sci-fi tactical turn-based strategy with an exciting storyline. The Albatross space liner is overrun by lizard-like monsters that can infect humans and turn them into their own kind. Save the passengers and defeat the hostile creatures. I am not a Monster: First Contact is a turn-based tactics, strategy and sci-fi game developed by Cheerdealers and published by Alawar. Released on September 27th 2018 has received 1,255 reviews of which 965 were positive and 290 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 90% discount, this title has earned the #5 position in the best deals for games like Sins of a Solar Empire II.
7.4
965
290
-90%
10.79€
1.07€
6. Battlezone 98 Redux
Similarity 50% 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 #6 position in the best deals for games like Sins of a Solar Empire II.
8.7
966
88
-89%
20.00€
2.20€
7. SPACECOM
Similarity 77% SPACECOM – a strategic-to-the-bone, starfleet command game in which deception, smart movement, and choices to battle decide victory or defeat. SPACECOM is a rts, strategy and indie game developed by Flow Combine and published by 11 bit studios. Released on September 17th 2014 has received 514 reviews of which 352 were positive and 162 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 85% discount, this title has earned the #7 position in the best deals for games like Sins of a Solar Empire II.
6.6
352
162
-85%
9.99€
1.49€
8. Total War: PHARAOH
Similarity 50% In Total War: PHARAOH, the newest entry in the award-winning grand strategy series, immerse yourself in ancient Egypt at the zenith of its power and experience the dramatic events that threaten its destruction. Total War: PHARAOH is a strategy, rts and grand strategy game developed by Creative Assembly and published by SEGA. Released on October 11th 2023 has received 5,028 reviews of which 3,209 were positive and 1,819 were negative resulting in a rating of 6.3 out of 10. Currently offered at a significant 84% discount, this title has earned the #8 position in the best deals for games like Sins of a Solar Empire II.
6.3
3,209
1,819
-84%
40.88€
6.54€
9. The Valiant
Similarity 50% Embark on a journey of brotherhood and redemption in The Valiant, a squad-based RTS set in 13th Century Europe and the Middle East. Command and level-up your medieval knights as you fight through an epic SP campaign, then take your skills online in both cooperative and competitive MP modes. The Valiant is a strategy, rts and medieval game developed by Kite Games and published by THQ Nordic. Released on October 19th 2022 has received 310 reviews of which 201 were positive and 109 were negative resulting in a rating of 6.2 out of 10. Currently offered at a significant 83% discount, this title has earned the #9 position in the best deals for games like Sins of a Solar Empire II.
6.2
201
109
-83%
24.53€
4.17€
10. Drone Swarm
Similarity 56% 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 318 reviews of which 201 were positive and 117 were negative resulting in a rating of 6.1 out of 10. Currently offered at a significant 83% discount, this title has earned the #10 position in the best deals for games like Sins of a Solar Empire II.
6.1
201
117
-83%
17.47€
2.97€
Free games like Sins of a Solar Empire II on Steam
Check out this fantastic list of free-to-play games like Sins of a Solar Empire II you can enjoy on Steam right now, updated on April 26th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Sins of a Solar Empire II.
1. Age of Empires III: Definitive Edition
Similarity 51% Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product. Age of Empires III: Definitive Edition is a strategy, base-building and rts game developed by World's Edge, Tantalus Media and Forgotten Empires and published by Xbox Game Studios. Released on October 15th 2020 has received 47,640 reviews of which 40,279 were positive and 7,361 were negative resulting in a rating of 8.3 out of 10. With 3,742 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Sins of a Solar Empire II.
8.3
40,279
7,361
3,742
players
2. Star Trek Online
Similarity 61% In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,043 reviews of which 15,849 were positive and 4,194 were negative resulting in a rating of 7.8 out of 10. Thanks to its free to play tag and a daily player base of 1,059, this game has secured the #2 spot in the ranking of free games like Sins of a Solar Empire II.
7.8
15,849
4,194
1,059
players
3. EMERGENCY
Similarity 50% Save lives – be a hero! Join forces against the chaos in the newest title of the award-winning EMERGENCY series. Take up your shift as incident commander and coordinate with other players to fight fires, arrest gangsters and rescue injured civilians. Your city needs you! EMERGENCY is a free to play, multiplayer and strategy game developed and published by Sixteen Tons Entertainment. Released on August 15th 2023 has received 5,361 reviews of which 3,638 were positive and 1,723 were negative resulting in a rating of 6.7 out of 10. Thanks to its free to play tag and a daily player base of 274, this game has secured the #3 spot in the ranking of free games like Sins of a Solar Empire II.
6.7
3,638
1,723
274
players
4. War Planet Online: Global Conquest
Similarity 55% Build your army, dominate your region and lead your alliance to conquer the globe! War Planet Online: Global Conquest is a strategy, massively multiplayer and building game developed and published by Gameloft. Released on December 19th 2017 has received 907 reviews of which 579 were positive and 328 were negative resulting in a rating of 6.2 out of 10. Attracting a solid base of 194 players due to its free access, this strategy game has achieved the #4 position in the best free games like Sins of a Solar Empire II.
6.2
579
328
194
players
5. Zero-K
Similarity 50% With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a strategy, free to play and rts game developed and published by Zero-K Team. Released on April 27th 2018 has received 3,869 reviews of which 3,624 were positive and 245 were negative resulting in an impressive rating of 9 out of 10. Attracting a solid base of 119 players due to its free access, this strategy game has achieved the #5 position in the best free games like Sins of a Solar Empire II.
9
3,624
245
119
players
6. Hades' Star
Similarity 70% 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. Attracting a solid base of 116 players due to its free access, this strategy game has achieved the #6 position in the best free games like Sins of a Solar Empire II.
7.1
1,864
697
116
players
7. Classic Marathon
Similarity 54% From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community. Classic Marathon is a fps, shooter and pvp game developed and published by Aleph One Developers. Released on May 10th 2024 has received 883 reviews of which 812 were positive and 71 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #7 spot among the most played free games like Sins of a Solar Empire II.
8.7
812
71
43
players
8. Planet S
Similarity 51% 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 2,572 reviews of which 2,358 were positive and 214 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #8 spot among the most played free games like Sins of a Solar Empire II.
8.8
2,358
214
17
players
9. Kepler-2100
Similarity 51% Kepler-2100 is a space fantasy strategy war game Kepler-2100 is a strategy, space and 3d platformer game developed and published by NCARD. Released on September 24th 2024 has received 425 reviews of which 342 were positive and 83 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #9 spot among the most played free games like Sins of a Solar Empire II.
7.6
342
83
11
players
10. Istrolid
Similarity 54% 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 2,658 reviews of which 2,322 were positive and 336 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #10 spot among the most played free games like Sins of a Solar Empire II.
8.4
2,322
336
6
players