Sins II Release Livestream: Harbinger Expansion

https://store.steampowered.com/news/app/1575940/view/695395286786247528
from Sins2 Forums

Join us on Sept 3 for a release day livestream on the new expansion for Sins of a Solar Empire II, Harbinger!

The team will also dive into the new features brought to the game in the free v2.0 update.

Mark Your Calendars | Wishlist Harbinger Now

📅 Thursday, Sept 3, 2026 at 1:00 PM EST

📍Location: Sins of a Solar Empire II Steam Page

 

What to Expect:

  • Planetary Transformation: The Eidolon spread corruption across the galaxy to empower themselves and their worlds. As populations fall under the Eidolon’s influence, their planets gain corruption over time. Once a world has fully fallen, it can be shrouded, greatly expanding the upgrades that planet can support.

  • Unit Corruption: Corruption empowers Eidolon units in combat as well as weakens them. As an Eidolon ship gains corruption, its hull dwindles while its offensive power increases. Enemy forces can become infected by corruption, giving the Eidolon another advantage.

  • Null Weapons: Eidolon weapons are far more advanced than those of the other factions; and can negate shields and spread corruption against enemies.

  • Cloaked Ships: Subterfuge is one of the great enemy's sharpest weapons, as seen on the Kalizaeth Profaner support capital ship. New cloaking and detection systems let the Eidolon appear and vanish at will, enabling hit-and-run tactics that reward patience and punish anyone caught off guard.

  • Psionic Abilities: The Eidolon possess psionic abilities that allow them to seize control of lesser beings and drive Vasari ships into madness, firing on friend and foe alike.

  • Phase Echoes: Sometimes the dead don't die. Eidolon units infused with corruption may refuse to die and carry on the onslaught.

  • Unit Animation System: A new unit animation system brings the Eidolon and other faction units to life with recoiling cannons, expanding factories, hangar bay doors and more.

  • Discover more about the Sins universe as you explore ancient technology and research new Eidolon capabilities.

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Reply #1 from Sins2 Forums Top

Corruption spreading across a world until it can be shrouded is more than I expected. I asked in the AMA thread whether the Eidolon were a real faction or a Vasari roster swap, and this list mostly answers it, so Ill take the point.

What I notice is that nearly all of it is combat side. Null weapons, cloaking, psionics, phase echoes, thats all what happens once the fleets meet. The corruption and shrouding is the only thing on the list that touches how you hold ground.

So the bit Im still waiting on is the economy. Whether a shrouded world changes what you build and how you expand, or whether you play the same expansion game as everyone else with stranger guns. Thats what decides how different they actually feel over a long match.