Sins of a Solar Empire®: Rebellion
Real-time space strategy blending empire management with large fleet battles
Ironclad Games Corporation, Stardock Entertainment · Published by Stardock Entertainment · Released Jun 12, 2012
- Reviews
- Very Positive
- 93% of 11K
- Recent reviews
- Mostly Positive
- 71% of 14 in 30 days
- Players
- 243
- daily peak, Nov 7, 2026
- Steam Deck
- Unsupported
- Last update on Steam
- 1 week ago
- Oct 30, 2026
Metacritic: 82/100 (critic reviews)
What is Sins of a Solar Empire®: Rebellion?
This real-time 4X strategy game takes place during a galactic war split by rival loyalist and rebel factions. In sandbox matches, you colonize planets, manage resources and diplomacy, research technology, build fleets, and fight for control of space.
For you if...
- +you enjoy slow, deliberate 4X strategy played in real time
- +you want single-player, co-op, and competitive multiplayer options
- +you like choosing factions with different ships and technologies
Not for you if...
- −you prefer short, fast-paced strategy matches
- −you dislike managing research, economies, and planetary expansion
What players say
93% of 10,507 reviews are positive · 71% of 14 in the last 30 days
Players most often praise the large scale, strategic depth, replayability, and extensive mod scene. Complaints focus on dated graphics and late-game performance, with some players preferring the sequel's technical improvements.
Players over time
▲ +5% vs a month agoPlayers online on Steam, one sample a day.
Highest since Sep 2026: 281 players on Sep 27, 2026.
Show the data
| Day | Players |
|---|---|
| Nov 7, 2026 | 243 |
| Nov 6, 2026 | 197 |
| Nov 5, 2026 | 217 |
| Nov 4, 2026 | 225 |
| Nov 3, 2026 | 217 |
| Nov 2, 2026 | 242 |
| Nov 1, 2026 | 265 |
| Oct 31, 2026 | 233 |
| Oct 30, 2026 | 186 |
| Oct 29, 2026 | 195 |
| Oct 28, 2026 | 201 |
| Oct 27, 2026 | 130 |
| Oct 27, 2026 | 193 |
| Oct 26, 2026 | 213 |
| Oct 25, 2026 | 233 |
| Oct 24, 2026 | 230 |
| Oct 23, 2026 | 222 |
| Oct 22, 2026 | 0 |
| Oct 21, 2026 | 200 |
| Oct 20, 2026 | 191 |
| Oct 19, 2026 | 227 |
| Oct 18, 2026 | 250 |
| Oct 17, 2026 | 236 |
| Oct 16, 2026 | 195 |
| Oct 15, 2026 | 200 |
| Oct 14, 2026 | 229 |
| Oct 13, 2026 | 218 |
| Oct 12, 2026 | 243 |
| Oct 11, 2026 | 277 |
| Oct 10, 2026 | 236 |
| Oct 9, 2026 | 189 |
| Oct 8, 2026 | 207 |
| Oct 7, 2026 | 203 |
| Oct 6, 2026 | 203 |
| Oct 5, 2026 | 212 |
| Oct 4, 2026 | 266 |
| Oct 3, 2026 | 232 |
| Oct 2, 2026 | 208 |
| Oct 1, 2026 | 215 |
| Sep 30, 2026 | 210 |
| Sep 29, 2026 | 199 |
| Sep 28, 2026 | 228 |
| Sep 27, 2026 | 281 |
| Sep 26, 2026 | 229 |
| Sep 25, 2026 | 184 |
| Sep 24, 2026 | 225 |
| Sep 23, 2026 | 168 |
| Sep 23, 2026 | 223 |
| Sep 22, 2026 | 219 |
| Sep 21, 2026 | 279 |
Screenshots and trailer
Sins of a Solar Empire®: Rebellion system requirements
Minimum: 256 MB w, 2 GB RAM, 5 GB of disk space.
As published by the developer.
Can my PC run Sins of a Solar Empire®: Rebellion?
Tell us your graphics card once and every game page will answer this for you.
Set up my PC →Minimum
- OS
- Windows 10 / 8 / Windows 7 SP1
- Processor
- 3 GHz Intel Pentium 4 Processor or Equivalent
- Graphics
- 256 MB Video Card w/Pixel Shader 3.0 Support (Radeon X1650 / GeForce 6800* or Better)
- Memory
- 2 GB Available System Memory
- Storage
- 5 GB HD space
- Notes
- Keyboard and Mouse (w/scroll wheel), Broadband Internet connection for Multiplayer
Recommended
- Processor
- Intel Core i5/i7 Processor or Equivalent
- Graphics
- 1 GB Video Card w/Pixel Shader 3.0 Support (Radeon X3000 Series / GeForce 8000* Series or Better)
- Memory
- 4 GB Available System Memory
- Notes
- Broadband Internet connection.
Does Sins of a Solar Empire®: Rebellion have co-op or multiplayer?
Yes: co-op online and LAN; PvP online and LAN. It also has a single-player mode.
Does Sins of a Solar Empire®: Rebellion run on Steam Deck?
Unsupported No: Valve rates it Unsupported on Steam Deck.
- Not supported on SteamOS
PC version details
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows
- Achievements
- 68
- Steam features
- Cloud saves, Family Sharing, Trading cards
- Languages
- Full audio: English, French, Italian, German. Text only: Japanese, Simplified Chinese, Polish, Russian.
Does Sins of a Solar Empire®: Rebellion use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 6, 2026. How to filter AI games on Steam
Tags
- Management
- Diplomacy
- Online Co-Op
- Multiplayer
- Singleplayer
- Simulation
- Space
- Strategy
- RTS
- 4X
- Sandbox
- Grand Strategy
- Sci-fi
- Exploration
- Co-op
- Replay Value
Recent updates
- Mar 27, 2025 · NOW OUT: First DLC for Sins of a Solar Empire II and Major v1.4 Update
- Feb 20, 2024 · Update Notes for February 20, 2024
- Oct 9, 2023 · Update Note for October 9, 2023
- Aug 23, 2023 · Sins of a Solar Empire: Rebellion v1.98 Patch Notes
- Jul 27, 2023 · Update Notes for 7/27/23
5 DLC available.