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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.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-02 · quoted reviews as of 2026-05-13.
What reviewers agree on
80 of the 104 reviews raise this.
“Extremely fun game! My only complaint is the extreme overuse of AI "art" (slop) used in place of standard art. I've been playing SIns for a veeerrrry long time, and this is a very strong sequel :) (Please... just do…”
“I was playing Homeworld and thought, I want something with a little more depth. I always thought Sins was more of a 4X game. Did my research and finally decided to pull the trigger. I worked through the tutorial which…”
“I very much dislike the AI art, but other than that it's the same as the first game but better. The fact I can have bigger maps and bigger battles and the game still runs at 144fps is amazing, while the first game…”
16 of the 104 reviews raise this.
“There's no campaign, it's basically the same thing as the first games version of random battles galactic conquest. The graphics are a bit better, there's some different ships. Buy the first one instead, this one has…”
“Firstly, if you liked the first Sins of a Solar Empires game, then this is an obvious buy. Everything has been improved from the first game and now with the bounty system in place, it feels like there is nothing left…”
“Edit: Come to find out the new portraits are human generated. Genuinely a good step in the right direction, so hey.. That's good. Gameplay is serviceable, but in all honesty the AI slop art is starting to piss me off…”
12 of the 104 reviews raise this.
“One of the best space RTS games, possibly even top 10 RTS games ever. Really excited for new factions, there are only 6 but the developers are very active in adding new content and should keep doing so for several years”
“It's already way better than Sins of a Solar Empire Rebellion which is saying a lot because they nailed it with the original game and all the DLC. You can tell the devs are passionate about this game and they want to…”
“Large space game, lots of updates that frequently adjust gameplay usually for the better. AI is decent, but could be better, although updates to the game frequently cause you to relearn how to best beat the AI. Lots of…”
10 of the 104 reviews raise this.
“I very much dislike the AI art, but other than that it's the same as the first game but better. The fact I can have bigger maps and bigger battles and the game still runs at 144fps is amazing, while the first game…”
“After the most recent update I fully recommend this game as a proper sequel to SinsR. Sins2 now has everything SinsR had in some way or another. Sins2 features vastly better performance than SinsR while looking better…”
“While I played the original game for years back in 2009 - 2016 and enjoyed the mods for it, I find that this newer version is mixed at best. The graphics, interface, and performance are much better and more satisfying.…”
10 of the 104 reviews raise this.
“It's pretty much every previous version with (in my not so humble opinion) a nicely refined interface, a few better mechanics, and much better tech tree progression. I really like the minor faction interface and rep…”
“Great game, only bought for Star Trek Armada 4! Even in the pre-alpha stage this easily makes the game worth the price!”
“A nice strategy game if you never played strategy games before. Otherwise, there are games that do the same thing better. Warhammer Dawn of War has better tactical battles Terra Invicta has better unit…”
21 of the 104 reviews raise this · 10 of them still recommend the game.
“I was a massive fan of the original games, the games were massive in depth and the dlcs had plenty to offer in new ships, mechanics and features, while i was majorly hyped for this game for such a long time and was…”
“There's no campaign, it's basically the same thing as the first games version of random battles galactic conquest. The graphics are a bit better, there's some different ships. Buy the first one instead, this one has…”
“Sadly, the game stability is plunging with every patch. As of the latest patch, there are two critical bugs that are yet to be hotfixed. 1. Construction ships cannot path around your own structures. You have to micro…”
8 of the 104 reviews raise this · 4 of them still recommend the game.
“Extremely fun game! My only complaint is the extreme overuse of AI "art" (slop) used in place of standard art. I've been playing SIns for a veeerrrry long time, and this is a very strong sequel :) (Please... just do…”
“I very much dislike the AI art, but other than that it's the same as the first game but better. The fact I can have bigger maps and bigger battles and the game still runs at 144fps is amazing, while the first game…”
“Edit: Come to find out the new portraits are human generated. Genuinely a good step in the right direction, so hey.. That's good. Gameplay is serviceable, but in all honesty the AI slop art is starting to piss me off…”
8 of the 104 reviews raise this · 5 of them still recommend the game.
“Edit: Come to find out the new portraits are human generated. Genuinely a good step in the right direction, so hey.. That's good. Gameplay is serviceable, but in all honesty the AI slop art is starting to piss me off…”
“It's pretty much every previous version with (in my not so humble opinion) a nicely refined interface, a few better mechanics, and much better tech tree progression. I really like the minor faction interface and rep…”
“AI slop. The ships look like the cybertruck and the game is overall ugly. No gameplay improovements since the last game worth taht price”
5 of the 104 reviews raise this · 3 of them still recommend the game.
“Edit: Come to find out the new portraits are human generated. Genuinely a good step in the right direction, so hey.. That's good. Gameplay is serviceable, but in all honesty the AI slop art is starting to piss me off…”
“Whole thing feels like a money grab”
“I want it to become viable for even larger maps but this is a decent alternative to stellaris. Stellaris has become extremely cancerous with all the dlc making it several hundred dollars to own, will this go the same…”
4 of the 104 reviews raise this · 3 of them still recommend the game.
“There's no campaign, it's basically the same thing as the first games version of random battles galactic conquest. The graphics are a bit better, there's some different ships. Buy the first one instead, this one has…”
“On the upside, its a Great game to kill time, graphics are gorgeous, it is a bit challenging. On the downside, its just a cosmetic upgrade from sins 1. there is no storyline and after you get the hang of the best ways…”
“its just fun, kinda space opera in nature but without a storyline to speak of. In the absence of that, the mechanics have been great since the first SOSE and gives hours with of bang for your buck”
Counted across 104 English reviews, sampled to match this game's 83.8% positive rating · as of 2026-05-13
“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“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“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 playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-05.
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.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-10). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Dev Journal: Eidolon Art Design
Howdy folks, my name is Paul Kiesling, or if you’re on the discord Lord_set, and I’m the Art Director for this DLC. Today I’m going to walk through the exhaustive process the team and I used to design
Publisher Sale: Up to 70% off Sins of a Solar Empire titles
Up to 70% off Sins of a Solar Empire titles during the 2026 Publisher Sale View Entire Sale Newly Released: Sins of a Solar Empire II deals: Other Sins of a Solar Empire deals: View Entire Sale
Hotfix Update Notes for September 4, 2026
Corruption Decay delay value changed to 60 seconds. Corruption Decay value changed to 0.001 (1 Corruption decays every 10 seconds) Azithel Mote Void Missile cooldown increased from 15s to 20s. Azithel
Sins of a Solar Empire II: Harbinger is Available Now
Sins of a Solar Empire II: Harbinger Arrives with the Deadly Eidolon Faction After 20 years of intrigue, the great enemy of the Vasari is revealed, ushering in new gameplay mechanics, ships, structure
Video Dev Journal: Eidolon Frigates | Sins of a Solar Empire II: Harbinger
It's time to take a close look at the Frigate class Ships available to the Eidolon, the dark and sinister new fourth faction added in Sins of a Solar Empire II: Harbinger. We'll examine the Nethril Hu
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-13.
| Genres | Simulation, Strategy |
| Player tags | Space · Strategy · 4X · RTS · Singleplayer · Sci-fi · Multiplayer · Tactical · Co-op · PvE · Story Rich · PvP (SteamSpy community voting) |
| Features | Single-player · Multi-player · PvP · Online PvP · LAN PvP · Co-op · Online Co-op · LAN Co-op |
| Languages | English * , French, Italian, German, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Hungarian * |
| Achievements | 64 |
| Official site | https://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