- Simulation
- Strategy
Game
Sins of a Solar Empire II
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
About Sins of a Solar Empire II
- Released
- October 2022
- Developer
- Ironclad Games
- Publisher
- Stardock Entertainment
- Engine
- Iron Engine
- Series
- Sins of a Solar Empire
- Platforms
- PC (Microsoft Windows)
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsUpdate Note for October 6, 2026Fix (we hope) for rare instances where the game refuses to launch on Steam with an Epic ownership error. This was caused by having the Epic launcher running and not owning the game there.
- Community AnnouncementsAutumn Sale: Up to 70% off Sins of a Solar Empire titlesUp to 70% off Sins of a Solar Empire titles during the 2026 Autumn SaleSee all DealsNewly Released:Sins of a Solar Empire II deals:Other Sins of a Solar Empire deals:See all Deals
- Community AnnouncementsVideo Blog: Eidolon Capital Ships & TitanSins of a Solar Empire II: Harbinger is the latest DLC for Sins of a Solar Empire II and this time, we're examining their Capital Ships and TItan. Eidolon Ships all generate Corruption as they fight, increasing their damage output as they do, while suffering gradual damage to their own rather low Hull Point pools once maximum Corruption levels are reached. Many have active use abilities that ex...
- Community AnnouncementsDeveloper Interview: Sovereign Echo on Eidolon Lore & DesignSins of a Solar Empire II's game designer, Conor "Sovereign Echo" Harris, joins BATTLEMODE to discuss the new Eidolon faction introduced in the Sins of a Solar Empire II: Harbinger DLC,
- Community AnnouncementsChange Notes for September 22, 2026v2.01.1 Change ListGameplayEidolon planet developmentThe Eidolon get more out of the worlds they take, and colonizing one no longer runs into conflict with shroud limitations.Colonizing with the Izharien Demiurge now grants its free Logistics, Defense and Population track levels in full. The grants were being clipped by the shroud development cap on the planet the Eidolon had just shrouded.City...
- Community AnnouncementsVideo Blog: Eidolon Corvettes and CruisersSins of a Solar Empire II: Harbinger introduced the terrifying Eidolon, and now it is time to take a close look at the Cruisers and Corvettes fielded in Eidolon war fleets. Eidolon Ships all generate Corruption as they fight, increasing their damage output as they do, while suffering gradual damage to their own rather low Hull Point pools once maximum Corruption levels are reached. Many have ac...
- Mods indexed
- 571
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- Galactic Empire Plus [live]Adds the Galactic Empire faction and ships. New balance updates to bring the Empire into line with vanilla balance. Thanks to Tracyn057 for all the hard work making the base mod. Requires MEM loaded at the bottom to function.196.0k downloads
- M.E.M FrameworkMultiverse Exansion Mod Framework mod for Sins of a Solar Empire II171.8k downloads
- Stargate Races 2Adds playable factions from the Stargate setting to the game. Currently includes only the Ancients, Asgard, Goa'uld & Wraith. **Requires the M.E.M Framework mod be present and loaded as well**145.7k downloads
- RRR 5.8.4A--Oct 19 2026-- Total conversion tech mod with heavily edited factions. Edited version of Elite521's mod included. Submods for customization. {color:warning_value}NOT COMPATIBLE WITH OTHER MODS.{color:/}141.5k downloads
- Star Trek: Armada IV - CoreThe Core Star Trek: Armada IV pack containing the United Federation of Planets. Please note this is in a Pre-Alpha Preview state.90.7k downloads
- Galactic Empire with Factions UnitedThis combines the Galactic Empire and the Factions United, along with some other mods, with some additional changes.73.7k downloads
- SzepysChokepointChokepoint maps collection (from 1v1 to 5v5)71.0k downloads
- More Starbase levelsGives Starbases the ability to level up like Capital ships and Titans. This is the version with no level limit!48.9k downloads
- More Capital ship and Titan levelsAll Capital ships and Titans get the maximum amount of levels sins2 allows. Scaling past level 10 is currently linear and based on the stat changes from level 9 to 10.43.0k downloads
- Atlas Maps 1.3A mod that add multiples maps, mostly chokepoint like. Its my first mod so im working on some improvement, fixes and new maps.31.8k downloads
- Unique Ships RemasteredAdds unique capital ships and titans to the game (updated to v1.5)28.1k downloads
- Sins of the UnionBringing the Factions from The Orville TV Show to Sins2. Featuring iconic ships, races, custom dialogue, artwork and more!27.7k downloads
- Laser Beam ModReplaces the visuals of all Advent laser weapons with short-burst beams.27.6k downloads
- Star Trek: Armada IV - CardassiansThe Star Trek: Armada IV pack containing the Cardassian Union. Please note this is in a Pre-Alpha Preview state.27.5k downloads
- Enigma's ChokepointsA collection of maps playable from 2-10 players in teams or FFA that feature a small group of planets by each persons spawn and 1-2 ways out that leads to the rest of the players.24.0k downloads
- crolo modsship artifact purchasable from minor factions, capital ship items: 8, planet slots: +1, military supply: 5k-6k, alt faction titan buildable, titan limit: 3, starbase limit: x2, , extractor cost: 0, trade port cost: 1, viturak phase gate limit: 9, etc22.2k downloads
- Starbase levelsGives Starbases the ability to level up like Capital ships and Titans.22.0k downloads
- Advent Exiles (RPG Faction)Play as a single ship without managing planets! This mod adds a new faction, the Advent Exiles: start with a weak Titan in a dangerous neighborhood, farm credits and experience, upgrade your ship, and become unstoppable.21.6k downloads
- Bigger TEC Bullet EffectsGraphical mod - Makes the TEC bullet/gun graphics larger and more visible. Especially pd and gauss cannon projectiles are more visible now. Try it out and see the difference. Also check out my "Bigger Advent Bolt Effects"21.2k downloads
- Elite521's Additions and Fixes v1.34.1Collection of bug fixes, changes, and additions made to make the game more fun without completely breaking it. Includes new minor factions, game mechanics, maps and more. Restart game after applying for full effects. See Mod.io page for full details.19.8k downloads
- Stargate Races 2 Fan Rebalance Submod** "Needs to be Fixed** This mod is a Submod that is rebalancing the factions to work with other mods specifically; The Galactic Empire Plus Live. **It requires you to have the main Stargate Races 2 mod**19.5k downloads
- Babylon 5 Acts of Sacrifice: Earth Alliance Moduleadds the Earth Alliance faction to the game this is NOT a total conversion special thanks to Special thanks to Badhaircut5, Darvroth , GenralHavoc, Darkyuri, KG_Sith and Bcelestia19.0k downloads
- UI/HUD Overhaul: SGRII Immersion sub-modFull game UI Immersion change in to Stargate18.2k downloads
- Alpha Galaxy (10 player)A gigantic map of 603 planets playable in FFA or teams. This map is meant as a more strategic and long game design rather than quick and tactical.17.4k downloads
Browse all 571 Sins of a Solar Empire II mods Sortable by downloads, rating and date.
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Why Sins of a Solar Empire II mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Sins of a Solar Empire II mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.