Sins of a Solar Empire: Rebellion

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The Next Installment to the Award-Winning RTS. While many were hopeful that diplomacy would finally end the war, differing opinions on what should be done, along with the depleted power of the controlling factions, has led to a splintering of the groups involved.

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8
Based on
7327 reviews
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Languages:
Developer:
Stardock
Release date:
12 June 2012
Recent Steam reviews:
Very Positive (10)
All Steam reviews:
Very Positive (7327)

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Description

The Next Installment to the Award-Winning RTS.
While many were hopeful that diplomacy would finally end the war, differing opinions on what should be done, along with the depleted power of the controlling factions, has led to a splintering of the groups involved.

The loyalist members of the Trader Emergency Coalition adopt a policy of isolation, focusing on enhanced defenses to ride out the rest of the war. Those who rebel against the coalition take on a purely militant view, coming to the opinion that the only way to bring peace is by ultimately crushing all who oppose them - especially xenos.

For the first time in their history, the war creates a schism in the Advent Unity. The loyalists seek to continue their policy of revenge against the Traders, and to assimilate all others to the Unity’s influence. However, others amongst the Advent suspect that a corrupting influence from within has diverted the Unity from its proper destiny.

The divide created in the Vasari Empire is less pronounced, but just as severe to their people. With the Vasari now practically frantic to move on to new space, the loyalist faction abandons cooperation and decides to take the resources they need by any means necessary. Having accepted the need to work together, the rebel faction feels that their best chance for survival is to work with the other races and bring them along to flee the approaching enemy.

Take the battle for galactic supremacy to its ultimate level in Sins of a Solar Empire: Rebellion – a standalone RT4X game that combines the tactics of real-time strategy with the depth of the 4X genre (eXplore, eXpand, eXploit, eXterminate).

Key features:

  • New Factions: Decide whether to play as a Loyalist or Rebel – each unlocks new technologies, ships and play styles for each race.
  • New Titan Class Warships: Mighty titans enter the fray of the war to tip the scales of power. Each faction may field their own unique titan, drawing upon unique strengths and abilities on the battlefield.
  • New and Updated Capital Ships: A new capital ship joins the fleet for each race to offer even more tactical options. Additionally, all existing capital ships have been upgraded to four levels for their abilities, allowing players to focus their ships along specific strengths.
  • New Corvette Class Ships: Small and maneuverable, each faction has developed a new light attack craft to harass enemy forces.
  • Updated Visuals: Updated graphics, particle effects, lighting and shadows, race specific UI and other enhancements make the Sins’ universe look better than ever.
  • New Victory Conditions: Take multiple paths to victory including – Military, Diplomatic, Research, Last Flagship Standing, Last Capital Standing and Occupation.
  • New Audio: More than 60 minutes of original music, countless new sound effects and dozens of new voice overs help bring the drama of battle to new levels of immersion.
  • Tutorials: New and updated tutorials make it easy for both experienced and new players to quickly start building their own solar empire.
  • Plus, a number of optimizations that provide better performance than ever before!

Recommended system requirements

minimum*

OS *:
Windows 10 / 8 / Windows 7 SP1
Processor:
3 GHz Intel Pentium 4 Processor or Equivalent
Memory:
2 GB Available System Memory
Graphics:
256 MB Video Card w/Pixel Shader 3.0 Support (Radeon X1650 / GeForce 6800* or Better)
DirectX®:
9.0c
Hard Drive:
5 GB HD space
Sound:
DirectX 9.0c Compatible Sound Card
Other Requirements:
Keyboard and Mouse (w/scroll wheel), Broadband Internet connection for Multiplayer
Requirement 9:
* NVidia video chipsets must use driver version 296.10 or higher and mobile cards be set as the primary video chipset for the game.

recommended*

Processor:
Intel Core i5/i7 Processor or Equivalent
Memory:
4 GB Available System Memory
Graphics:
1 GB Video Card w/Pixel Shader 3.0 Support (Radeon X3000 Series / GeForce 8000* Series or Better)
Other Requirements:
Broadband Internet connection.

User reviews

Phiend
Recommended | 09 May 2026
2417h played

Absolutely recommended. *Sins of a Solar Empire: Rebellion* is one of those rare strategy games that still holds up after hundreds—or thousands—of hours. It blends 4X empire-building with real-time fleet combat in a way

Helpful: 3
p0RtaL.
Recommended | 19 Apr 2026
111h played

After the initial learning curve this game from 2008 is a pure gem. The 3 races feel truely unique, yet also quite balanced. If you're looking for a cool space RTS with quite alot of depth and replayability this is a

Helpful: 0
stoneythegoomba
Recommended | 28 Apr 2026
124h played

Been Playing this title for years and years.... So many variations, so many different ways to win the game. Very fun for a RTS, highly recommend

Helpful: 2
Reuben ツ
Recommended | 01 May 2026
11.8h played

For a game now old and overshadowed by its predeccesor, it still shines and is massively enjoyable - especially in light of mods like Star Wars Interregnum. What an amazing community.

Helpful: 1
Antiscl
Recommended | 12 Apr 2026
7.1h played

One of my favorites. Don't forget to scale the U.I. up in the settings menu, at the bottom of the page.

Helpful: 2
once sniper
Recommended | 04 Apr 2026
15.8h played

I can only recommend if you have good eyesight and like very detailed fiddly games. once you have played one game it's the same again but different map

Helpful: 0