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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Workers & Resources: Soviet Republic

Build a soviet republic from an impoverished country into a rich industrial superpower in a city builder with intricate production chains and a fully simulated global economy. Manage the lives of your citizens from education to work and party loyalty to criminal activity.

Similarity 54%
Price -65% 14.14€
Rating 8.9
Release 20 Jun 2024

Empires of the Undergrowth

Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

Similarity 54%
Price -63% 10.99€
Rating 9.2
Release 07 Jun 2024

Sid Meier's Civilization® V

Create, discover, and download new player-created maps, scenarios, interfaces, and more!

Similarity 54%
Price 29.99€
Rating 9.5
Release 23 Sep 2010

Sid Meier's Civilization® III Complete

Sid Meier's Civilization III: Complete, the latest offering in the Sid Meier's Civilization III franchise, provides gaming fans with Sid Meier's Civilization III, the highly-addictive journey of discovery.

Similarity 54%
Price 4.99€
Rating 8.7
Release 25 Oct 2006

War Selection

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.

Similarity 54%
Price Free to play
Rating 8.4
Release 08 Oct 2019

Interstellar Space: Genesis

Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!

Similarity 54%
Price 27.99€
Rating 7.9
Release 25 Jul 2019

Dungeons 3

At last, the Dungeon Lord has successfully united the forces of evil and established his dark empire. Time for the next step in his most diabolical quest: expansion!

Similarity 54%
Price 29.99€
Rating 9.2
Release 13 Oct 2017

Surviving Mars

There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.

Similarity 54%
Price 29.99€
Rating 8.3
Release 15 Mar 2018

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.

Similarity 54%
Price -51% 7.31€
Rating 7.8
Release 15 Oct 2015

STAR WARS™: Squadrons

Master the art of starfighter combat in the authentic piloting experience STAR WARS™: Squadrons. Feel the adrenaline of first-person multiplayer space dogfights alongside your squadron, and buckle up in a thrilling STAR WARS™ story.

Similarity 53%
Price 39.99€
Rating 6.5
Release 01 Oct 2020

Frozenheim

Lead your Viking clan onto unknown shores and carve out a future for your people in the fjords of Frozenheim. Gather resources, expand, and watch your settlement grow to a bustling town that will withstand the harshness of winter and wrath of other clans.

Similarity 53%
Price 16.99€
Rating 6.9
Release 16 Jun 2022

A Total War Saga: TROY

Inspired by The Iliad and brought to life through the award-winning strategy game series, A Total War Saga: TROY brings a blend of grand, turn-based empire management and spectacular real-time battles to the heart of the Trojan War.

Similarity 53%
Price 49.99€
Rating 7.0
Release 02 Sep 2021

Rebel Inc: Escalation

A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country.

Similarity 53%
Price -81% 2.80€
Rating 8.0
Release 13 Oct 2021

X4: Foundations

X4: FOUNDATIONS brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey. Experience tons of improvements with the massive 7.50 Update!

Similarity 53%
Price -73% 13.32€
Rating 7.8
Release 30 Nov 2018

Moonbase Alpha

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.

Similarity 53%
Price Free to play
Rating 8.8
Release 06 Jul 2010

Europa Universalis III Complete

Europa Universalis III Complete includes the original Europa Universalis III as well as the expansions In Nomine and Napoleons Ambition Europa Universalis III delves deeply into the areas of exploration, trade, warfare and diplomacy.

Similarity 53%
Price 14.99€
Rating 8.0
Release 04 Feb 2009

Planet Coaster 2

Build and customise thrilling roller coasters and incredible water slides, manage the ultimate theme park experience, and share your epic creations. Are you ready to ride the wave?

Similarity 52%
Price -32% 33.99€
Rating 6.2
Release 06 Nov 2024

Sugar Shack

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!

Similarity 52%
Price -92% 1.54€
Rating 6.5
Release 14 Sep 2023

Cosmoteer: Starship Architect & Commander

Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

Similarity 52%
Price 18.99€
Rating 9.2
Release 24 Oct 2022

Ashes of the Singularity: Escalation

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.

Similarity 52%
Price -94% 1.75€
Rating 7.3
Release 10 Nov 2016

Empyrion - Galactic Survival

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!

Similarity 52%
Price 19.99€
Rating 7.8
Release 05 Aug 2020

Tropico 5

Return to the remote island nation of Tropico and expand your Dynasty’s reign from the early colonial period to beyond the 21st Century, facing new challenges including advanced trading mechanics, technology and scientific research, as well as cooperative and competitive MULTIPLAYER.

Similarity 52%
Price 19.99€
Rating 7.7
Release 23 May 2014

StarMade

The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!

Similarity 52%
Price 14.99€
Rating 6.6
Release 04 Dec 2014

Supreme Commander 2

Includes 47 Steam achievements, leaderboards, and stats!

Similarity 52%
Price -76% 3.17€
Rating 8.6
Release 01 Mar 2010

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