News

Nov 20, 2025

The “Diplomatic Repercussions” Update for Sins of a Solar Empire II arrives on December 10th

From Press Release:

PLYMOUTH, Mich. (Nov. 20, 2025) – Sins of a Solar Empire II players are in for an early holiday gift as Stardock Entertainment will release Sins of a Solar Empire II v1.5 – The ‘Diplomatic Repercussions’ Update on December 10, 2025. This major update introduces an enhanced diplomacy system, new quick start options, improved AI, updated modding UX and dozens of other changes requested by players.

“Fans have been giving us excellent feedback during the past year,” said Brian Clair, product owner for Sins of a Solar Empire II, Stardock Entertainment. “We’ve been implementing a steady stream of improvements during 2025, but we wanted to go out with a bang and deliver an update that would excite the fans. Our v1.5 update includes some of the most requested updates from players.”

Key Features of ‘Diplomatic Repercussions’ Update:

• Overhauled Enhanced Diplomacy System: A reworked diplomacy system allowing greater flexibility and options to players. AI players now consider multiple factors when choosing diplomatic partners. Players can now trade influence and Items.
• New Quick Start Options: New game setup options let players determine their initial start conditions. Role-players can select the ‘Basic’ option to start with just a light factory, while ‘Quick’ and ‘Advanced’ players can begin with planets, fleets and more.
• Improved AI Opponents: AI players react more dynamically to changes over the course of a game. Players will notice them making better decisions throughout their playtime.
• Updated Mod UX: The modding GUI has been updated to not only be faster, but to provide more information to players. Ratings and category information now available in a mod’s tile. Addition of a download/install progress bar for larger, total-conversion mods.
• Economic Rebalance: Fully rebalanced to bring more of the economy into orbit instead of on planets.
• Research and Tech Tree Layout: Tech tree now less cluttered visually; similar subjects now grouped together for ease of use. Updates to research pacing lower requirements so players won’t need as many research stations to reach higher tier technologies.
• Orbital Traffic: To help bring the galaxy to life, Orbital Shuttles have been added that will automatically travel between population centers in the game as a fun visual element to enhance immersion.

Sins of a Solar Empire II is available for purchase at Steam, Epic Games Store, or directly at Stardock. For more information on Sins of a Solar Empire II, check out www.sinsofasolarempire2.com.

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