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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Galactic Civilizations IV

Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.

Similarity 86%
Price 38.99€
Rating 7.1
Release 19 Oct 2023

NEBULOUS: Fleet Command

Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.

Similarity 79%
Price -59% 12.37€
Rating 8.0
Release 11 Feb 2022

Stellaris

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.

Similarity 79%
Price -78% 8.87€
Rating 8.6
Release 09 May 2016

ENDLESS™ Space - Definitive Edition

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.

Similarity 78%
Price 9.99€
Rating 7.9
Release 04 Jul 2012

AI War 2

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.

Similarity 74%
Price 19.50€
Rating 8.4
Release 22 Oct 2019

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.

Similarity 71%
Price -51% 17.15€
Rating 7.8
Release 14 Sep 2023

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 70%
Price -49% 10.28€
Rating 7.3
Release 26 Sep 2024

Nexus 5X

eXplore, eXpand, eXploit, eXterminate, EXPRESS. All of the depth, diplomacy, conflict and conquest of a turn-based 4X epic but played in fast-paced 60-minute competitive sessions. Play Solo or Multiplayer for 2-8 players.

Similarity 70%
Price 14.99€
Rating 8.6
Release 18 Apr 2024

Old World

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?

Similarity 70%
Price -95% 1.99€
Rating 8.0
Release 18 May 2022

Europa Universalis IV

Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.

Similarity 70%
Price -83% 6.66€
Rating 8.6
Release 13 Aug 2013

World Warfare & Economics

Take control of any nation and shape its future. Manage resources, trade, and taxes, engage in real-time warfare, navigate global diplomacy, and react to dynamic world events. Build a thriving economy, forge alliances, and command armies in a constantly evolving world!

Similarity 69%
Price -50% 12.49€
Rating 6.7
Release 20 Dec 2023

Lawgivers II

Lawgivers II is a political sandbox game that features multiple electoral systems, approve/reject bills and govern a country. Start out your career from the very bottom, and perhaps one day, lead your nation to become the most influential in the world.

Similarity 69%
Price 24.99€
Rating 6.5
Release 18 Aug 2023

Seven Kingdoms 2 HD

Get ready for an exciting real-time strategy game experience like no other with Seven Kingdoms 2! Say goodbye to the monotony of resource gathering and army building, its unique gameplay offers a thrilling blend of city management, trade, industry, espionage, diplomacy, and conquest!

Similarity 68%
Price -60% 3.90€
Rating 7.5
Release 04 Feb 2015

Stellar Warfare

Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!

Similarity 67%
Price -40% 12.08€
Rating 8.0
Release 04 Aug 2021

Desynced

Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.

Similarity 66%
Price -32% 19.73€
Rating 7.9
Release 15 Aug 2023

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 66%
Price 39.99€
Rating 6.8
Release 02 Nov 2015

Offworld Trading Company

Mars has been colonized, and Earth's corporate titans fight to dominate this new market. Competition is fierce in this fast-paced economic RTS from Civilization IV Lead Designer, Soren Johnson.

Similarity 64%
Price -76% 7.08€
Rating 7.5
Release 28 Apr 2016

United Penguin Kingdom

A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.

Similarity 64%
Price 14.79€
Rating 7.3
Release 09 Mar 2024

Supreme Ruler 2030

Rise to power as any modern day country in a realistic military, political and economic simulation. Command your country's diplomacy, espionage, and resource management to strengthen your position. Use real-time tactical control of your military to fortify your place as the Supreme Ruler.

Similarity 63%
Price 28.99€
Rating 6.4
Release 25 Jul 2023

Techtonica

Techtonica is a first-person factory automation game with a gripping mystery about mining your way out from the depths of an alien planet. Explore bioluminescent caves, mold destructible terrain, construct a massive subterranean factory. Dig your way toward answers & discover the secrets of Calyx.

Similarity 63%
Price 28.99€
Rating 6.7
Release 07 Nov 2024

Terra Invicta

An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.

Similarity 63%
Price -52% 19.16€
Rating 7.8
Release 26 Sep 2022

Distant Worlds: Universe

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.

Similarity 63%
Price -92% 2.24€
Rating 7.3
Release 23 May 2014

Victoria II

Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...

Similarity 63%
Price -74% 5.20€
Rating 9.0
Release 30 Aug 2010

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.

Similarity 62%
Price -63% 7.36€
Rating 6.1
Release 20 Jun 2023

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 April 16th 2025.

1. Hearts of Iron IV

Similarity 57% Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history. Hearts of Iron IV is a strategy, world war ii and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on June 06th 2016 has received 337,250 reviews of which 300,980 were positive and 36,270 were negative resulting in a rating of 8.8 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 23,881 peak concurrent players over the last day.
8.8
300,980
36,270

23,881
players

2. Sid Meier’s Civilization® VI

Similarity 61% 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 346,976 reviews of which 301,328 were positive and 45,648 were negative resulting in a rating of 8.6 out of 10. While seeing 19,030 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.
8.6
301,328
45,648

19,030
players

3. Crusader Kings III

Similarity 59% Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages. Crusader Kings III is a strategy, medieval and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on September 01st 2020 has received 124,131 reviews of which 112,162 were positive and 11,969 were negative resulting in a rating of 8.9 out of 10. While seeing 13,670 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.
8.9
112,162
11,969

13,670
players

4. Sid Meier's Civilization® V

Similarity 54% Create, discover, and download new player-created maps, scenarios, interfaces, and more! Sid Meier's Civilization® V is a turn-based strategy, strategy and turn-based game developed by Firaxis Games, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on September 23rd 2010 has received 203,484 reviews of which 194,977 were positive and 8,507 were negative resulting in an impressive rating of 9.5 out of 10. With 11,866 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.
9.5
194,977
8,507

11,866
players

5. Europa Universalis IV

Similarity 70% Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages. Europa Universalis IV is a grand strategy, strategy and historical game developed by Paradox Development Studio and Paradox Tinto and published by Paradox Interactive. Released on August 13th 2013 has received 133,375 reviews of which 115,447 were positive and 17,928 were negative resulting in a rating of 8.6 out of 10. With 10,757 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.
8.6
115,447
17,928

10,757
players

6. Stellaris

Similarity 79% 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 181,672 reviews of which 157,497 were positive and 24,175 were negative resulting in a rating of 8.6 out of 10. With 9,926 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.
8.6
157,497
24,175

9,926
players

7. 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 78,584 reviews of which 67,670 were positive and 10,914 were negative resulting in a rating of 8.5 out of 10. With 6,919 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.
8.5
67,670
10,914

6,919
players

8. Elite Dangerous

Similarity 57% Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 98,919 reviews of which 76,509 were positive and 22,410 were negative resulting in a rating of 7.7 out of 10. With 5,805 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.
7.7
76,509
22,410

5,805
players

9. Victoria 3

Similarity 60% Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history. Victoria 3 is a grand strategy, economy and historical game developed by Paradox Development Studio and published by Paradox Interactive. Released on October 25th 2022 has received 51,679 reviews of which 34,331 were positive and 17,348 were negative resulting in a rating of 6.6 out of 10. With 4,537 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.
6.6
34,331
17,348

4,537
players

10. Oxygen Not Included

Similarity 60% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,145 reviews of which 123,019 were positive and 4,126 were negative resulting in an impressive rating of 9.5 out of 10. With 4,534 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.
9.5
123,019
4,126

4,534
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 April 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. Battlestar Galactica Deadlock

Similarity 51% 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? Battlestar Galactica Deadlock is a strategy, space and sci-fi game developed by Black Lab Games and published by Slitherine Ltd.. Released on August 31st 2017 has received 3,427 reviews of which 2,881 were positive and 546 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 96% discount, this game currently holds the #1 spot in the best deals for games like Sins of a Solar Empire®: Rebellion.
8.1
2,881
546

-96% 42.25€ 1.69€

2. Old World

Similarity 70% 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 4,451 reviews of which 3,650 were positive and 801 were negative resulting in a rating of 8.0 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in games like Sins of a Solar Empire®: Rebellion.
8.0
3,650
801

-95% 39.80€ 1.99€

3. Homeworld Remastered Collection

Similarity 50% Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation. Homeworld Remastered Collection is a space, strategy and rts game developed by Gearbox Software and Aspyr (Mac) and published by Aspyr (Mac) and Gearbox Publishing. Released on February 25th 2015 has received 13,504 reviews of which 11,934 were positive and 1,570 were negative resulting in a rating of 8.6 out of 10. Thanks to its incredible 94% discount, this game is now the #3 best deal in games like Sins of a Solar Empire®: Rebellion.
8.6
11,934
1,570

-94% 33.33€ 2.00€

4. Ashes of the Singularity: Escalation

Similarity 52% 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 4,738 reviews of which 3,526 were positive and 1,212 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 94% discount, this title has earned the #4 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.3
3,526
1,212

-94% 29.17€ 1.75€

5. Oriental Empires

Similarity 51% Turn based 4X strategy game, recreating the civilizations of ancient China. Develop your land, build great cities, raise huge armies and fight epic battles, with hundreds of soldiers fighting right on the game map. Advance your technologies, culture and religion to create one of mankind’s biggest empires. Oriental Empires is a strategy, simulation and indie game developed by Shining Pixel Studios and published by Iceberg Interactive. Released on September 14th 2017 has received 2,928 reviews of which 2,354 were positive and 574 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #5 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.8
2,354
574

-92% 29.25€ 2.34€

6. Distant Worlds: Universe

Similarity 63% 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 1,815 reviews of which 1,375 were positive and 440 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 92% discount, this title has earned the #6 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.3
1,375
440

-92% 28.00€ 2.24€

7. Rogue State Revolution

Similarity 57% Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election. Rogue State Revolution is a sandbox, atmospheric and turn-based strategy game developed by LRDGames and Inc. and published by Modern Wolf. Released on March 18th 2021 has received 494 reviews of which 381 were positive and 113 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 92% discount, this title has earned the #7 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.3
381
113

-92% 12.50€ 1.00€

8. Sugar Shack

Similarity 52% Grab some friends, fire up the boiler, and let the syrup flow! Build the world around your cabin as you fulfill orders of hungry villagers with endless sweet tooths. There's never a dull moment in this cozy forest inspired by Quebec lore and art! Sugar Shack is a online co-op, co-op and indie game developed by MadLife Divertissement and published by indie.io. Released on September 14th 2023 has received 303 reviews of which 207 were positive and 96 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 92% discount, this title has earned the #8 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
6.5
207
96

-92% 19.25€ 1.54€

9. Revival: Recolonization

Similarity 58% Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience. Revival: Recolonization is a 4x, grand strategy and turn-based strategy game developed and published by HeroCraft PC. Released on April 11th 2024 has received 396 reviews of which 288 were positive and 108 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 91% discount, this title has earned the #9 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
6.9
288
108

-91% 27.67€ 2.49€

10. Per Aspera

Similarity 56% 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. Per Aspera is a online co-op, real-time and management game developed by Tlön Industries and published by Raw Fury. Released on December 03rd 2020 has received 5,423 reviews of which 4,118 were positive and 1,305 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 88% discount, this title has earned the #10 position in the best deals for games like Sins of a Solar Empire®: Rebellion.
7.4
4,118
1,305

-88% 29.42€ 3.53€

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 April 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. Crusader Kings II

Similarity 55% 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 73,649 reviews of which 66,224 were positive and 7,425 were negative resulting in a rating of 8.9 out of 10. With 1,430 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.
8.9
66,224
7,425

1,430
players

2. Business Tour - Board Game with Online Multiplayer

Similarity 51% "Business Tour" is a free to play multiplayer tabletop game. Build your monopoly with friends. Complete daily tasks, compete against the other players and receive trade items rewards! Business Tour - Board Game with Online Multiplayer is a board game, free to play and multiplayer game developed by and published by 8floor. Released on July 27th 2017 has received 76,297 reviews of which 46,352 were positive and 29,945 were negative resulting in a rating of 6.0 out of 10. Thanks to its free to play tag and a daily player base of 634, this game has secured the #2 spot in the ranking of free games like Sins of a Solar Empire®: Rebellion.
6.0
46,352
29,945

634
players

3. War Selection

Similarity 54% War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map. War Selection is a strategy, base-building and free to play game developed and published by Glyph Worlds. Released on October 08th 2019 has received 21,670 reviews of which 18,620 were positive and 3,050 were negative resulting in a rating of 8.4 out of 10. Thanks to its free to play tag and a daily player base of 433, this game has secured the #3 spot in the ranking of free games like Sins of a Solar Empire®: Rebellion.
8.4
18,620
3,050

433
players

4. OpenTTD

Similarity 56% OpenTTD is a business simulation game in which players earn money by transporting passengers and cargo via road, rail, water, and air. It is an open-source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe. OpenTTD is a simulation, building and free to play game developed and published by OpenTTD. Released on April 01st 2021 has received 14,119 reviews of which 13,577 were positive and 542 were negative resulting in an impressive rating of 9.4 out of 10. Attracting a solid base of 422 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.
9.4
13,577
542

422
players

5. Supremacy 1914: World War 1

Similarity 55% Take over the control of one of the mighty nations during the times of World War 1 in the biggest WW1 strategy game of all time. Conquer provinces, forge alliances and build up your economy in real-time on persistent maps. Build experimental weapons of World War 1 and become the one true superpower! Supremacy 1914: World War 1 is a strategy, free to play and war game developed and published by Bytro Labs GmbH. Released on July 16th 2019 has received 3,781 reviews of which 2,833 were positive and 948 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 311 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.
7.3
2,833
948

311
players

6. EMERGENCY

Similarity 57% 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 5,328 reviews of which 3,609 were positive and 1,719 were negative resulting in a rating of 6.6 out of 10. Attracting a solid base of 190 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®: Rebellion.
6.6
3,609
1,719

190
players

7. War Planet Online: Global Conquest

Similarity 51% 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 903 reviews of which 576 were positive and 327 were negative resulting in a rating of 6.2 out of 10. Attracting a solid base of 163 players due to its free access, this strategy game has achieved the #7 position in the best free games like Sins of a Solar Empire®: Rebellion.
6.2
576
327

163
players

8. Zero-K

Similarity 51% 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 3,856 reviews of which 3,613 were positive and 243 were negative resulting in an impressive rating of 9.0 out of 10. Attracting a solid base of 144 players due to its free access, this strategy game has achieved the #8 position in the best free games like Sins of a Solar Empire®: Rebellion.
9.0
3,613
243

144
players

9. Planet S

Similarity 54% 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 2,565 reviews of which 2,352 were positive and 213 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
2,352
213

19
players

10. Moonbase Alpha

Similarity 53% 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 12,830 reviews of which 11,616 were positive and 1,214 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #10 spot among the most played free games like Sins of a Solar Empire®: Rebellion.
8.8
11,616
1,214

3
players