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Sins of a Solar Empire II

Sins of a Solar Empire II

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🛠️ Sins of a Solar Empire II update history

Official announcements the developer posts on Steam—patches, new content, and events—sorted by date. Click a title to read the full post.

Latest update · Oct 7
🛠️ Update Note for October 6, 2026
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October 2026

  • 10/7Wed
    🛠️ Patch / update
    Update Note for October 6, 2026

    Fix (we hope) for rare instances where the game refuses to launch on Steam with an Epic ownership error. This was caused by having the Epic launcher running and not owning the game there.

  • 10/2Fri
    🎉 Events
    Autumn Sale: Up to 70% off Sins of a Solar Empire titles

    Up to 70% off Sins of a Solar Empire titles during the 2026 Autumn SaleSee all DealsNewly Released:Sins of a Solar Empire II deals:Other Sins of a Solar Empire deals:See all Deals

  • 10/1Thu
    📢 Announcement
    Video Blog: Eidolon Capital Ships & Titan

    Sins of a Solar Empire II: Harbinger is the latest DLC for Sins of a Solar Empire II and this time, we're examining their Capital Ships and TItan. Eidolon Ships all generate Corruption as they fight, …

September 2026

  • 9/24Thu
    📢 Announcement
    Developer Interview: Sovereign Echo on Eidolon Lore & Design

    Sins of a Solar Empire II's game designer, Conor "Sovereign Echo" Harris, joins BATTLEMODE to discuss the new Eidolon faction introduced in the Sins of a Solar Empire II: Harbinger DLC,

  • 9/23Wed
    📢 Announcement
    Change Notes for September 22, 2026

    v2.01.1 Change ListGameplayEidolon planet developmentThe Eidolon get more out of the worlds they take, and colonizing one no longer runs into conflict with shroud limitations.Colonizing with the Izhar…

  • 9/17Thu
    📢 Announcement
    Video Blog: Eidolon Corvettes and Cruisers

    Sins of a Solar Empire II: Harbinger introduced the terrifying Eidolon, and now it is time to take a close look at the Cruisers and Corvettes fielded in Eidolon war fleets. Eidolon Ships all generate …

  • 9/10Thu
    📢 Announcement
    Dev Journal: Eidolon Art Design

    Howdy folks, my name is Paul Kiesling, or if you’re on the discord Lord_set, and I’m the Art Director for this DLC. Today I’m going to walk through the exhaustive process the team and I used to design…

  • 9/8Tue
    🎉 Events
    Publisher Sale: Up to 70% off Sins of a Solar Empire titles

    Up to 70% off Sins of a Solar Empire titles during the 2026 Publisher SaleView Entire SaleNewly Released:Sins of a Solar Empire II deals:Other Sins of a Solar Empire deals:View Entire Sale

  • 9/5Sat
    🛠️ Patch / update
    Hotfix Update Notes for September 4, 2026

    Corruption Decay delay value changed to 60 seconds. Corruption Decay value changed to 0.001 (1 Corruption decays every 10 seconds) Azithel Mote Void Missile cooldown increased from 15s to 20s. Azithel…

  • 9/3Thu
    📢 Announcement
    Sins of a Solar Empire II: Harbinger is Available Now

    Sins of a Solar Empire II: Harbinger Arrives with the Deadly Eidolon FactionAfter 20 years of intrigue, the great enemy of the Vasari is revealed, ushering in new gameplay mechanics, ships, structures…

August 2026

July 2026

  • 7/10Fri
    🛠️ Patch / update v1.61.4
    Change Notes for July 10, 2026 (v1.61.4)

    A small update today to add a quality-of-life improvement, balance adjustments for missiles and point-defense and other items.Added visual range circles for defense structures during placement.Fixed b…

June 2026

  • 6/24Wed
    🛠️ Patch / update
    Video Dev Journal: Vasari Balance Adjustment

    In this video developer journal BATTLEMODE explains the reasoning and method behind the recent balance adjustment to the Vasari, to tone them down a little and bring them back into line with the Adven…

Source: official Steam announcements (updated every 6–24 hours). Titles and summaries are copyright of the original developers.