Sins of a Solar Empire®: Rebellion

87KS82Metacritic
Released Jun 12, 2012by Ironclad Games Corporation, Stardock EntertainmentVery Positive(93% of 16.3K Steam reviews)Recent: 95% positive

Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.

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Green Man Gaming
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Steam
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Keyshops

Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →

Gamivo
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Lowest price
-79% vs Steam£3.69
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Eneba
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-79% vs Steam£3.77
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£54.99
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£17.75
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Multipacks (4)

DLCs (5)

Sins of a Solar Empire Series (1)

Other games from the same series.

About Sins of a Solar Empire®: Rebellion

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!

Game details

Sins of a Solar Empire®: Rebellion price history

Lowest tracked price: £3.06 (Jul 9, 2026) · current best: £3.69 across 8 stores.

Sins of a Solar Empire®: Rebellion player count & reviews

100% positive reviews in the last 30 days (93% all-time) · 364 peak players in the last 30 days.

Sins of a Solar Empire®: Rebellion — frequently asked questions

Where can I buy Sins of a Solar Empire®: Rebellion at the cheapest price?

Right now the cheapest offer for Sins of a Solar Empire®: Rebellion is £3.69 at Gamivo. KingsPrice compares 11 offers from 8 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Sins of a Solar Empire®: Rebellion has ever been?

The lowest price KingsPrice has tracked for Sins of a Solar Empire®: Rebellion is £3.06 (recorded on Jul 9, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How many people play Sins of a Solar Empire®: Rebellion?

Sins of a Solar Empire®: Rebellion peaked at 364 concurrent players on Steam in the last 30 days (highest on Jul 25, 2026). The player chart on this page updates daily.

Is it safe to buy a Sins of a Solar Empire®: Rebellion Steam key from a keyshop?

Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →

How can I get Sins of a Solar Empire®: Rebellion at a discount?

Create a free price alert on this page and KingsPrice will email you when Sins of a Solar Empire®: Rebellion drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

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
  • * 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

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.

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