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Sins of a Solar Empire II

PatchBot will keep your Discord channel up-to-date on all the latest Sins of a Solar Empire II patch notes.

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Latest Updates

January 30, 2025 Change Log

Welcome to our first update of 2025! This is a fairly small update as we focus our attention on the major changes coming with our first DLC in a couple months. For January, we’ve added new gravity wells, more planet textures, a rebalance of Exotics and Surveying, AI improvements and a bit more. This update is not compatible with previous versions! If you'd like to finish an old save game or replay, you can opt-into the previous version: ...

January 8, 2024 Hotfix

Fix for Advent Unity window showing up blank/empty sometimes.

December 4, 2024 Hotfix

Fix for multiplayer desyncs on Windows 10 host machines.

November 2024 - Ruins of War Update

Welcome to ‘Ruins of War,' our November 2024 update for Sins of a Solar Empire II. As the name implies, this update includes new artwork that deals with the aftermath of major battles. Previously, you would see generic wreckage for large units in the game when they were destroyed. In this update you’ll find that every capital ship, titan and starbase features their own unique wreckage that can be collected by the victor for resources. ...

October 4, 2024 Hotfix Notes

Fixed font that was missing a couple of Cyrillic characters.

September 2024 Quality of Life Update Notes

This update won't work with old save games and replays, but you can still play them by using the previous version: Previous Version Instructions

If you wish to finish up your game on the previous version, do the following:

  • Select ‘Sins of a Solar Empire II’ in your Steam Library.
  • Click the gear icon in the upper right.
  • Select Properties → Betas.
  • Select 'previous_edition' from the Beta Participation dropdown.
  • Steam will update you to the latest files. ...