Games like Sins of a Solar Empire®: Rebellion 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®: Rebellion are available at the bottom of the page.

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Internet Cafe Simulator Internet Cafe Simulator is an internet cafe business simulation game. Build the best internet café in the world!

Similarity 42%
Price -94% 0.61€
Rating 7.2
Release 25 Oct 2019
STAR WARS™ Empire at War - Gold Pack 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?

Similarity 42%
Price 19.50€
Rating 9.6
Release 25 May 2010
Per Aspera Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.

Similarity 42%
Price -86% 4.26€
Rating 7.4
Release 03 Dec 2020
ENDLESS™ Space 2 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?

Similarity 42%
Price 39.99€
Rating 8.2
Release 18 May 2017
Super Sus Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard!

Similarity 42%
Price Free to play
Rating 6.7
Release 30 Jul 2024
8-Bit Invaders! 8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.

Similarity 42%
Price -86% 2.18€
Rating 7.8
Release 16 Dec 2016
Supreme Commander: Forged Alliance 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.

Similarity 42%
Price -69% 3.11€
Rating 9.4
Release 28 Sep 2011
Multiwinia Multiwinia is a fast-paced, retro-inspired RTS that blends arcade action with strategic depth. Command armies of Multiwinians in multiplayer battles across vibrant, nostalgic environments. With simple controls and dynamic gameplay, it offers endless fun and challenge for players of all skill levels.

Similarity 42%
Price 9.75€
Rating 7.7
Release 19 Sep 2008
Buggos Lead your hive to victory in 'Buggos', an RTS Auto Battler! Customize your swarm with 120+ evolutions and conquer humanity. Strategy meets bug chaos!

Similarity 42%
Price -96% 0.65€
Rating 8.3
Release 17 Mar 2022
Emergency 2014 You have command of paramedics, fire brigades, police and disaster relief. Send your teams out on tense real-time missions to deal with disasters in Europe's major centres.

Similarity 42%
Price 9.99€
Rating 6.2
Release 15 Nov 2013
SKIBIDI: ESCAPE FROM TOILETS! "SKIBIDI: ESCAPE FROM TOILETS" is a cooperative horror game for 1-4 players. TV MANs are trying to get through creepy and atmospheric locations that are filled with dangerous SKIBIDI - they want to kill you! Free content updates with new levels and game modes - YES YES YES!

Similarity 42%
Price -70% 1.49€
Rating 7.1
Release 30 Nov 2023
Boxing School BOXING SCHOOL! Take control of a boxing gym in the 80s. You’ll hire the boxers, teach them to fight and climb the ranks. Management game made by the developers of Gladiator School.

Similarity 42%
Price 8.19€
Rating 8.4
Release 10 Jan 2019
Among Us An online and local party game of teamwork and betrayal for 4-15 players...in space!

Similarity 42%
Price -77% 1.04€
Rating 9.1
Release 16 Nov 2018
Cities: Skylines Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience.

Similarity 42%
Price -84% 4.55€
Rating 9.2
Release 10 Mar 2015
Songs of Silence Lead armies, rebuild fallen kingdoms, and rise to greatness in Songs of Silence. Embark on an epic journey through an Art Nouveau-inspired fantasy world with intense battles and captivating storytelling!

Similarity 42%
Price -64% 10.82€
Rating 7.8
Release 13 Nov 2024
Bomber Crew Chocks away! Bomber Crew is a strategic simulation game, where picking the right crew and keeping your bomber in tip top shape is the difference between completing your mission or losing it all! USAAF DLC NOW AVAILABLE! FLY THE ICONIC AMERICAN BOMBER!

Similarity 42%
Price -93% 1.13€
Rating 8.6
Release 19 Oct 2017
Two Point Hospital Design stunning hospitals, cure peculiar illnesses and manage troublesome staff as you spread your budding healthcare organisation across Two Point County.

Similarity 42%
Price -37% 19.05€
Rating 9.0
Release 29 Aug 2018
Trainz™ Simulator 12 Released 2011. See also Trainz A New Era and TRS19.

Similarity 42%
Price 9.75€
Rating 7.2
Release 08 Jun 2011
Jurassic World Evolution Place yourself at the heart of the Jurassic franchise and build your own Jurassic World. Bioengineer dinosaurs that think, feel and react intelligently to the world around them and face threats posed by espionage, breakouts and devastating tropical storms in an uncertain world where life always finds a way.

Similarity 42%
Price -92% 3.94€
Rating 8.6
Release 11 Jun 2018
Company of Heroes 2 Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below.

Similarity 42%
Price -95% 1.02€
Rating 7.8
Release 25 Jun 2013
Tower!3D Pro Tower!3D Pro will put you in the position of an airport tower controller, one of the most stressful job on the world!

Similarity 42%
Price 58.99€
Rating 6.5
Release 08 Mar 2017
Old Coin Pusher Friends This is an online cooperative coin pusher game set in the Old japan that can be enjoyed by one or all. Collect Japanese koban and try to win the jackpot! In addition, by collecting prizes, new content is released and coins are easily increased. Online multiplayer for up to five players possible.

Similarity 41%
Price 3.99€
Rating 8.3
Release 07 Oct 2021
Finnish Cottage Simulator Finnish Cottage Simulator is the ultimate cottage experience. Relax and enjoy the Finnish summer nature, go to the sauna, get drunk, grill food or play games with others!

Similarity 41%
Price 14.79€
Rating 9.0
Release 15 Nov 2024
STAR WARS™ Galactic Battlegrounds Saga Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.

Similarity 41%
Price 5.89€
Rating 8.8
Release 01 Mar 2016

Most played games like Sins of a Solar Empire®: Rebellion on Steam

Take a look at the top games like Sins of a Solar Empire®: Rebellion that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.

1. ELDEN RING NIGHTREIGN

Similarity 40% ELDEN RING NIGHTREIGN is a standalone adventure within the ELDEN RING universe, crafted to offer players a new gaming experience by reimagining the game’s core design. ELDEN RING NIGHTREIGN is a souls-like, online co-op and rogue-like game developed by FromSoftware and Inc. and published by FromSoftware, Inc. and Bandai Namco Entertainment. Released on May 29th 2025 has received 65,672 reviews of which 48,901 were positive and 16,771 were negative resulting in a rating of 7.4 out of 10. The game has hit the top spot as the #1 most played game like Sins of a Solar Empire®: Rebellion, thanks to its 104,169 peak concurrent players over the last day.
7.4
48,901
16,771

104,169
players

2. Football Manager 2024

Similarity 51% Build a world-class team ready to dominate your rivals in football’s most prestigious competitions. Progress never stops when you’re pursuing footballing greatness. Football Manager 2024 is a simulation, sports and management game developed by Sports Interactive and published by SEGA. Released on November 06th 2023 has received 23,048 reviews of which 20,927 were positive and 2,121 were negative resulting in a rating of 8.9 out of 10. While seeing 41,995 players online at once in the last 24 hours, this game is currently ranked #2 among games like Sins of a Solar Empire®: Rebellion based on player count.
8.9
20,927
2,121

41,995
players

3. Sid Meier’s Civilization® VI

Similarity 43% Expand your empire, advance your culture and go head-to-head against history’s greatest leaders. Will your civilization stand the test of time? Sid Meier’s Civilization® VI is a strategy, turn-based strategy and multiplayer game developed by Firaxis Games, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on October 20th 2016 has received 349,920 reviews of which 304,053 were positive and 45,867 were negative resulting in a rating of 8.6 out of 10. While seeing 23,194 players online at once in the last 24 hours, this game is currently ranked #3 among games like Sins of a Solar Empire®: Rebellion based on player count.
8.6
304,053
45,867

23,194
players

4. Stellaris

Similarity 49% 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 185,433 reviews of which 159,527 were positive and 25,906 were negative resulting in a rating of 8.5 out of 10. With 13,555 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®: Rebellion.
8.5
159,527
25,906

13,555
players

5. Bloons TD 6

Similarity 48% The Bloons are back and better than ever! Get ready for a massive 3D tower defense game designed to give you hours and hours of the best strategy gaming available. Bloons TD 6 is a tower defense, strategy and multiplayer game developed and published by Ninja Kiwi. Released on December 17th 2018 has received 353,960 reviews of which 344,269 were positive and 9,691 were negative resulting in an impressive rating of 9.6 out of 10. With 9,200 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®: Rebellion.
9.6
344,269
9,691

9,200
players

6. Cities: Skylines

Similarity 42% Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience. Cities: Skylines is a city builder, simulation and building game developed by Colossal Order Ltd. and published by Paradox Interactive. Released on March 10th 2015 has received 275,770 reviews of which 256,362 were positive and 19,408 were negative resulting in an impressive rating of 9.2 out of 10. With 6,314 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®: Rebellion.
9.2
256,362
19,408

6,314
players

7. Supermarket Together

Similarity 61% The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action! Supermarket Together is a simulation, online co-op and multiplayer game developed and published by DeadDevsTellNoLies. Released on August 09th 2024 has received 67,435 reviews of which 63,994 were positive and 3,441 were negative resulting in an impressive rating of 9.3 out of 10. With 5,674 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®: Rebellion.
9.3
63,994
3,441

5,674
players

8. Among Us

Similarity 42% An online and local party game of teamwork and betrayal for 4-15 players...in space! Among Us is a multiplayer, social deduction and online co-op game developed and published by Innersloth. Released on November 16th 2018 has received 700,785 reviews of which 643,681 were positive and 57,104 were negative resulting in an impressive rating of 9.1 out of 10. With 4,462 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®: Rebellion.
9.1
643,681
57,104

4,462
players

9. Anno 1800

Similarity 45% Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you. Anno 1800 is a city builder, strategy and simulation game developed by Ubisoft Mainz and published by Ubisoft. Released on April 16th 2019 has received 25,091 reviews of which 20,368 were positive and 4,723 were negative resulting in a rating of 8.0 out of 10. With 3,157 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®: Rebellion.
8.0
20,368
4,723

3,157
players

10. STAR WARS™ Empire at War - Gold Pack

Similarity 42% 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 39,435 reviews of which 38,503 were positive and 932 were negative resulting in an impressive rating of 9.6 out of 10. With 2,985 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®: Rebellion.
9.6
38,503
932

2,985
players

Best deals on games like Sins of a Solar Empire®: Rebellion on Steam

Discover fantastic savings with the best discounts on a variety of games like Sins of a Solar Empire®: Rebellion available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Sins of a Solar Empire®: Rebellion.

1. EarthX

Similarity 45% EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars! EarthX is a simulation, indie and strategy game developed by Denis and Ry and published by Mesote Games. Released on July 12th 2023 has received 875 reviews of which 769 were positive and 106 were negative resulting in a rating of 8.3 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Sins of a Solar Empire®: Rebellion.
8.3
769
106

-99% 19.99€ 0.29€

2. Old World

Similarity 47% Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind? Old World is a strategy, simulation and 4x game developed by Mohawk Games and published by Hooded Horse. Released on May 18th 2022 has received 4,673 reviews of which 3,841 were positive and 832 were negative resulting in a rating of 8.0 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Sins of a Solar Empire®: Rebellion.
8.0
3,841
832

-99% 39.99€ 0.48€

3. Railroad Corporation

Similarity 46% Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now! Railroad Corporation is a strategy, trains and management game developed by Corbie Games and published by Iceberg Interactive. Released on November 18th 2019 has received 1,387 reviews of which 1,028 were positive and 359 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like Sins of a Solar Empire®: Rebellion.
7.1
1,028
359

-99% 35.10€ 0.44€

4. Distant Worlds 2

Similarity 45% Distant Worlds 2 is a vast, pausable real-time 4X space strategy game. Distant Worlds 2 is a strategy, simulation and 4x game developed by CodeForce and published by Slitherine Ltd.. Released on March 10th 2022 has received 3,237 reviews of which 2,304 were positive and 933 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
6.9
2,304
933

-99% 48.99€ 0.36€

5. BattleGroupVR

Similarity 40% BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship. BattleGroupVR is a space sim, space and vr game developed and published by SpaceOwl Games. Released on July 31st 2023 has received 902 reviews of which 834 were positive and 68 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
8.7
834
68

-98% 20.99€ 0.42€

6. AI War 2

Similarity 44% The most devious and acclaimed artificial intelligence in strategy gaming is better than ever. A grand strategy/RTS hybrid that reverses many conventions of both genres. Take territory without attracting attention, build your empire with care, and adapt to an ever-evolving galactic battleground. AI War 2 is a 4x, grand strategy and multiplayer game developed and published by Arcen Games and LLC. Released on October 22nd 2019 has received 1,490 reviews of which 1,318 were positive and 172 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
8.4
1,318
172

-98% 19.50€ 0.49€

7. Knights of Honor II: Sovereign

Similarity 49% Become the king and fight over Europe in this fresh take on medieval real-time grand strategy. Manage provinces, gather armies, initiate diplomacy, and dabble in espionage. The path is open: become the true Sovereign of your people and bring them to glory. Knights of Honor II: Sovereign is a strategy, simulation and medieval game developed by Black Sea Games and published by THQ Nordic. Released on December 06th 2022 has received 5,792 reviews of which 4,450 were positive and 1,342 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.5
4,450
1,342

-98% 44.99€ 0.97€

8. Railroad Tycoon 3

Similarity 48% Railroad Tycoon 3 features 25 scenarios challenging players to recreate magnificent feats of railroading history from around the world. Players can lay track (including tunnels and overpasses), pick from over 40 locomotives from early steams to modern bullets, choose to haul over 35 types of cargo in a dynamic economy, and participate in... Railroad Tycoon 3 is a management, strategy and trains game developed by PopTop and published by 2K. Released on May 04th 2007 has received 1,169 reviews of which 900 were positive and 269 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.4
900
269

-98% 9.99€ 0.25€

9. Distant Worlds: Universe

Similarity 45% 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 1,819 reviews of which 1,377 were positive and 442 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.3
1,377
442

-98% 28.99€ 0.66€

10. Buzz Aldrin's Space Program Manager

Similarity 56% Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space. Buzz Aldrin's Space Program Manager is a simulation, strategy and space game developed by Polar Motion and published by Slitherine Ltd.. Released on October 31st 2014 has received 479 reviews of which 369 were positive and 110 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.3
369
110

-98% 28.99€ 0.77€

Free games like Sins of a Solar Empire®: Rebellion on Steam

Check out this fantastic list of free-to-play games like Sins of a Solar Empire®: Rebellion you can enjoy on Steam right now, updated on June 16th 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®: Rebellion.

1. Supermarket Together

Similarity 61% The multiplayer supermarket has arrived to your neighbourhood for free! Stock your shop space, unlock perks and franchises, hire employees or chase those pesky shoplifters. The more players, the more action! Supermarket Together is a simulation, online co-op and multiplayer game developed and published by DeadDevsTellNoLies. Released on August 09th 2024 has received 67,435 reviews of which 63,994 were positive and 3,441 were negative resulting in an impressive rating of 9.3 out of 10. With 5,674 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®: Rebellion.
9.3
63,994
3,441

5,674
players

2. Crusader Kings II

Similarity 40% Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy. Crusader Kings II is a grand strategy, strategy and medieval game developed by Paradox Development Studio and published by Paradox Interactive. Released on February 14th 2012 has received 73,809 reviews of which 66,359 were positive and 7,450 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 1,554, this game has secured the #2 spot in the ranking of free games like Sins of a Solar Empire®: Rebellion.
8.9
66,359
7,450

1,554
players

3. Dungeon Defenders II

Similarity 41% Dungeon Defenders II is a cooperative Action Tower Defense game packed with roleplaying elements like loot, leveling, and pets. Dungeon Defenders II is a multiplayer, online co-op and co-op campaign game developed and published by Chromatic Games. Released on June 20th 2017 has received 21,823 reviews of which 16,882 were positive and 4,941 were negative resulting in a rating of 7.6 out of 10. Thanks to its free to play tag and a daily player base of 396, this game has secured the #3 spot in the ranking of free games like Sins of a Solar Empire®: Rebellion.
7.6
16,882
4,941

396
players

4. Super Sus

Similarity 42% Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard! Super Sus is a multiplayer, online co-op and social deduction game developed and published by GIANT INTERACTIVE HK LIMITED. Released on July 30th 2024 has received 1,263 reviews of which 871 were positive and 392 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 228 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®: Rebellion.
6.7
871
392

228
players

5. 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 5,564 reviews of which 3,797 were positive and 1,767 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 197 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®: Rebellion.
6.7
3,797
1,767

197
players

6. Zero-K

Similarity 41% 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 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #6 spot among the most played free games like Sins of a Solar Empire®: Rebellion.
9.0
3,678
244

93
players

7. It Takes Two Friend's Pass

Similarity 41% Download Friend's Pass* and play It Takes Two with a friend for free. Just grab a friend who owns the full game, download Friend's Pass for free, and play together! It Takes Two Friend's Pass is a online co-op, co-op and multiplayer game developed by Hazelight Studio and published by Electronic Arts. Released on March 26th 2021 has received 795 reviews of which 703 were positive and 92 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #7 spot among the most played free games like Sins of a Solar Empire®: Rebellion.
8.3
703
92

26
players

8. Planet S

Similarity 43% 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 2,603 reviews of which 2,387 were positive and 216 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®: Rebellion.
8.8
2,387
216

17
players

9. Moonbase Alpha

Similarity 51% NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha. Moonbase Alpha is a space, simulation and free to play game developed by Virtual Heroes and Army Game Studio and published by NASA. Released on July 06th 2010 has received 12,838 reviews of which 11,622 were positive and 1,216 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #9 spot among the most played free games like Sins of a Solar Empire®: Rebellion.
8.8
11,622
1,216

2
players

10. Smart Factory Tycoon: Beginnings

Similarity 45% This is a free version of Smart Factory Tycoon, a game inspired by Little Big Workshop introducing the first productions. Smart Factory Tycoon is a tycoon management game where you design your dream factory with robots, plan all steps of production, research new technologies and become a tycoon! Smart Factory Tycoon: Beginnings is a simulation, strategy and resource management game developed by Turquoise Revival Games and published by GrabTheGames. Released on January 05th 2022 has received 496 reviews of which 385 were positive and 111 were negative resulting in a rating of 7.3 out of 10. The game currently holds the #10 spot among the most played free games like Sins of a Solar Empire®: Rebellion.
7.3
385
111

1
players