Sins of a Solar Empire: Rebellion
🛠️ Sins of a Solar Empire: Rebellion 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.
August 2026
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8/6Thu📢 AnnouncementSins of a Solar Empire II: Harbinger Releases September 3, 2026
The Fourth Faction for Sins of a Solar Empire II Releasing September 3rd, 2026After 20 years of intrigue, the great enemy of the Vasari is revealed, ushering in new gameplay mechanics, ships, structur…
February 2026
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2/23Mon📢 AnnouncementAshes of the Singularity II Demo Available Now on Steam Next Fest
Free massive-scale RTS demo includes two factions, 8-player multiplayer, three maps and full skirmish modePlay the demoStardock Entertainment and Oxide Games announced today that a free demo for Ashes…
August 2025
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8/12Tue📢 AnnouncementAnnouncing: Massive Scale RTS Game Ashes of the Singularity II
Highly anticipated sequel features larger battles, advanced units, and a new campaign to lead humanity against hostile AI takeoverWishlist Ashes II NowStardock and Oxide Games today announced Ashes of…
August 2024
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8/15Thu📢 AnnouncementNOW OUT: Sins of a Solar Empire II
Empires will rise and fall as Sins of a Solar Empire II is now available to purchase on Steam. A new era begins as the sequel to one of the most beloved strategy titles of all time releases today on S…
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8/1Thu📢 AnnouncementSins of a Solar Empire II Launch Date Announced
Coming to Steam August 15, 2024 Sequel to beloved strategy title features new asymmetric playstyles, dynamically changing maps, deeper tactical combat, expanded strategic depth, and more. Check out Ri…
May 2024
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5/1Wed📢 AnnouncementSins of a Solar Empire II Releasing on Steam this Summer
Sequel to beloved strategy title features new asymmetric playstyles, dynamically changing maps, deeper tactical combat, expanded strategic depth, and more https://store.steampowered.com/app/1575940/ T…
December 2023
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12/20Wed📢 AnnouncementCommunity Created Mod Features for Sins of a Solar Empire: Rebellion
Unleash the full potential of your Sins of a Solar Empire: Rebellion experience with our curated collection of mod features. Dive into a galaxy of enhanced gameplay, graphics, and epic modifications t…
Source: official Steam announcements (updated every 6–24 hours). Titles and summaries are copyright of the original developers.