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Steam Support
Sign in to get personalized help for Sins of a Solar Empire: Rebellion.
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Here is information from the Store and Community that we hope will help you find a solution.
Support for this product is provided by:
Official Support
Email: support@stardock.com
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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
    • * 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.
* Starting January 1st, 2024, the Steam Client will only support Windows 10 and later versions.