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Sins of a Solar Empire II

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.

In short, Steam reviewers most often praise “Improved mechanics and gameplay systems” (80 of 104 reviews) and “Improved graphics and visual updates” (16); the most common complaint is “Stagnant with poor AI behavior” (21). What reviewers agree on ↓

Released Aug 15, 2024 Developer Ironclad Games Corporation, Stardock Entertainment Publisher Stardock Entertainment Platforms Windows SpaceStrategy4XRTSSingleplayer
View on Steam ↗ $49.99 (US · as of 2026-10-25)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-29 · quoted reviews as of 2026-05-13.

83.6%positive8,789 reviews

What reviewers agree on

Praised
Criticised
Bar length = how many of the 104 reviews raise the point On criticised points, the pale part = reviewers who still recommend the game Select a point to see the exact counts and what reviewers wrote.

Counted across 104 English reviews, sampled to match this game's 83.6% positive rating · as of 2026-05-13

Recommended · 47 found this helpful

“People are out here complaining that it's not different enough from sins of a solar empire 1- This is a straight improvement and evolution of the things that game did. It's streamlined a lot of features, it's tightened up a lot of the balance, it's unified a bunch of disparate…”

— a player, Steam review · 8 hrs played
Recommended · 19 found this helpful

“This is an extremely fun little space RTS. The amount of modability and the support for modders on this game is absolutely fantastic. My only complaint, if I had to dig to find one, would be that planet's role in building your empire seems a little lackluster and has huge…”

— a player, Steam review · 751 hrs played
Recommended · 10 found this helpful

“So, where to start? Sins of a Solar Empire II does not exist in a vacuum - it follows what I believe is one of *the* best space RTSes on the market, one that has an expansive and vibrant modding community and which I have played for nearly 500 hours as of writing and I will…”

— a player, Steam review · 105 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.

13,330all-time peak
0 5k 10k 2025 2026 No data collected for this period 6.1k avg · Aug 2024

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-10-26.

72achievements
11.0%median completion
0.5%rarest: Unlikely Allies Revealed
38.7% of players 37.0% of players 35.7% of players 33.9% of players 32.9% of players 31.7% of players 30.2% of players 29.8% of players 27.9% of players 27.8% of players 27.8% of players 27.5% of players 26.9% of players 25.7% of players 25.0% of players 23.8% of players 23.6% of players 22.6% of players 22.5% of players 22.5% of players 20.8% of players 20.1% of players 19.4% of players 19.3% of players 19.3% of players 18.4% of players 16.9% of players 16.4% of players 15.9% of players 15.7% of players 15.1% of players 14.7% of players 12.2% of players 11.9% of players 11.4% of players 11.3% of players 11.0% of players 10.9% of players 10.3% of players 10.0% of players 9.7% of players 8.8% of players 8.6% of players 8.1% of players 7.9% of players 7.8% of players 7.4% of players 5.9% of players 5.5% of players 5.1% of players 4.7% of players 4.6% of players 4.4% of players 4.3% of players 4.3% of players 4.2% of players 3.5% of players 3.2% of players 2.6% of players 2.4% of players 38.7% 0% most earned rarest
Almost everyone has
38.7%Expert Governor — Build 12+ Planet Items in a single game.
37.0%Ensign — Play for 10 hours.
35.7%Never Fall — Fully construct a titan.
Rarest badges of honor
0.5%Unlikely Allies Revealed — Get a synergy pact with an Eidolon player as the Advent Wrath.
0.5%Portal Nexus — Have 10 Minor or Major Portals on a single planet.
0.8%The Predator Becomes the Prey — Defeat an Eidolon player as the Vasari.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

$49.99current · sampled 2026-10-25 20:53 UTC
$24.99lowest since tracking began2026-07-13
US49.99 USD
EU50.99 EUR
UK44.99 GBP
Australia70.50 AUD
Canada59.99 CAD
Japan6,200 JPY
Brazil154.99 BRL
China170.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$25 Brazil Japan Canada Australia US EU UK≈$60

Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-26). Relative comparison only.

$0 $50 $100 07-11 07-31 08-21 09-11 10-02 10-25

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Oct 06, 2026
Update Note for October 6, 2026

Fix (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.

Oct 01, 2026
Autumn Sale: Up to 70% off Sins of a Solar Empire titles

Up to 70% off Sins of a Solar Empire titles during the 2026 Autumn Sale See all Deals Newly Released: Sins of a Solar Empire II deals: Other Sins of a Solar Empire deals: See all Deals

Sep 30, 2026
Video Blog: Eidolon Capital Ships & Titan

Sins 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,

Sep 23, 2026
Developer Interview: Sovereign Echo on Eidolon Lore & Design

Sins 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,

Sep 22, 2026
Change Notes for September 22, 2026

v2.01.1 Change List Gameplay Eidolon planet development The Eidolon get more out of the worlds they take, and colonizing one no longer runs into conflict with shroud limitations. Colonizing with the I

Games like Sins of a Solar Empire II

From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-13.

GenresSimulation, Strategy
Player tagsSpace · Strategy · 4X · RTS · Singleplayer · Sci-fi · Multiplayer · Tactical · Co-op · PvE · Story Rich · PvP (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · LAN PvP · Co-op · Online Co-op · LAN Co-op
LanguagesEnglish * , French, Italian, German, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Hungarian *
Achievements64
Official sitehttps://www.sinsofasolarempire2.com/
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 v1607+ / 11 (64-bit) Processor: 4-core Processor (Intel Core i5 5th-generation or AMD Ryzen 2x00 series) Memory: 8 GB RAM Graphics: 3D Video Card w/4GB VRAM (Nvidia GeForce 950 / AMD Radeon RX 450) DirectX: Version 11 Network: Broadband Internet connection Storage: 20 GB available space Additional Notes: 1920x1080 minimum screen resolution