Stardock Entertainment Launches *Sins of a Solar Empire II: Harbinger* Expansion

Plymouth, Mich., On September 3, 2026, Stardock Entertainment launched the first expansion for its popular strategy game, *Sins of a Solar Empire II: Harbinger*. This expansion, which includes the long-awaited fourth faction, the Eidolon, is now available on Steam, Epic Games Store, and Stardock's direct platform. The launch comes with a free version 2.0 update, enhancing the core gameplay experience for existing owners.

The Eidolon faction, shrouded in secrecy and corruption, brings a new dynamic to the galaxy. Unlike traditional combat factions that fight for planets, trade routes, culture, or wealth, the Eidolon operate from the shadows, spreading corruption across the galaxy. Their technology is designed to cloak entire worlds, enabling them to strike from the darkness. Key features include:

- Planetary Transformation: Worlds under Eidolon influence gain corruption over time, eventually becoming shrouded and offering more advanced upgrades. - Unit Corruption: Eidolon units grow stronger in combat but weaken over time, while enemy forces can become corrupted, adding another layer of complexity. - Null Weapons: More advanced than other factions, these weapons can negate enemy shields and spread corruption. - Cloaked Ships: The Eidolon can cloak and uncloak at will, allowing for hit-and-run tactics. - Psionic Abilities: These abilities allow the Eidolon to control lesser beings and drive Vasari ships into madness. - Phase Echoes: Corrupted Eidolon units can refuse to die, continuing the fight.

Alongside the expansion, Stardock is releasing a free version 2.0 update. This update includes several quality-of-life improvements and graphical enhancements:

- User Interface (UI) Improvements: The Unity quick bar can now be expanded and pinned, and weapon ranges of defense structures are visible on mouseover. - Market Window Redesign: The market now uses price fluctuations with tracking and history. - Modding Enhancements: A redesigned modding UI system makes browsing and highlighting popular mods easier, and users can now save and reload mod playlists. - Graphics Settings: New planetary shaders provide more natural lighting and weather effects, and the game now auto-detects the best graphics settings for each system.

The expansion is priced at $23.99 and is included in the Premium Edition, which costs $99.99, or as part of the Sins of a Solar Empire II: Content Pass, priced at $59.99. The free v2.0 update is available to all owners on all platforms.

For those eager to dive into this new chapter of *Sins of a Solar Empire II*, the game is now available for purchase on Steam, Epic Games Store, or directly through Stardock's website. The launch discount price will remain until September 14, 2026, at 1:00 PM ET.

Follow *Sins II* and learn more about the latest developments at the official website.