Sins of a Solar Empire II: Harbinger

Overview

Sins of a Solar Empire II: Harbinger is a Steam DLC connected to Sins of a Solar Empire II. It was prepared by Ironclad Games Corporation, Stardock Entertainment, published by Stardock Entertainment, and released on Sep 3, 2026. This page focuses on the store listing, screenshots, price, requirements, and its relationship to the main game rather than presenting it as a normal live-player game.

Store reviews and relationship

Sins of a Solar Empire II: Harbinger is a DLC, so player-count observations and tracked peak are not meaningful in the same way they are for a base game. The useful signals here are reviews, store recommendations, price, platform support, and the link back to Sins of a Solar Empire II.

Language and system requirements

Sins of a Solar Empire II: Harbinger is available in 11 languages including:

4 regional rating boards including kgrb, dejus, steam germany, and igrs

Recommendations and store value

Sins of a Solar Empire II: Harbinger has 188 Steam recommendations. Twitch streaming and unit-sales estimates usually belong on the parent game page, while this page is better for checking the DLC, price, media, and store details.

Sins of a Solar Empire II: Harbinger overview details

Sins of a Solar Empire II: Harbinger is tracked as Steam Store content with pricing, reviews, packages, media, requirements, and its relationship to the parent app.

Steam Store description

The Vasari have been running for nearly 10,000 years from the 'great threat' that destroyed their empire. For 35 years, they’ve warned anyone who would listen about it drawing near…. Now, they have arrived: the Eidolon. The Eidolon don’t value typical assets like other races, but they do exploit them as a way to spread their corruption more effectively. They seek only to corrupt those they encounter, transforming them into something else to empower themselves. Features 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 be…

SteamPulse editorial summary

Sins of a Solar Empire II: Harbinger is listed as a DLC with $29.99. It supports Windows, belongs to Single-player, Multi-player, PvP, Online PvP, LAN PvP, Co-op, Online Co-op, and LAN Co-op, and is associated with Simulation and Strategy. Because it is a DLC, SteamPulse focuses on its Store listing, relationship to the parent app, media, packages, and metadata rather than treating it like a standalone concurrency page.

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.