DLCSins of a Solar Empire: Rebellion - Minor Factions DLCLoading store offers
Sins of a Solar Empire®: Rebellion
Choosing Loyalist or Rebel changes available technologies, ships, and play styles, while several victory conditions leave room for different strategic approaches. The Steam PC game can be played solo or in multiplayer, making this a fit for either a personal campaign or shared sessions. At 
Kinguin, the price is ≈ $3.69, matching the low recorded here. That makes the present offer a good moment to consider it if you want a substantial space strategy, without locking you into one faction or route to victory. At $19.99 from Kinguin, this is the lowest price currently recorded on this site for a game blending real-time strategy and 4X.
KinguinSins of a Solar Empire: Rebellion PC Steam CD Key
K4GSins of a Solar Empire: Rebellion Standard Edition Steam CD KeyAll-time low ~ $4.00across Steam & third-party storesat the recorded all-time low
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Price History
Past 36 months · Updated dailyHistorical Low~ $4.002026-04Current Low Across Stores~ $4.80GreenManGamingvs. Historical Low+20%
Prices cover Steam and 39 authorized stores; only legitimate offers are counted. The chart shows weekly market-wide lows and Steam's official price across the past 36 months.
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DLCSins of a Solar Empire: Rebellion® - Outlaw Sectors™ DLCLoading store offers
DLCSins of a Solar Empire: Rebellion - Stellar Phenomena®Loading store offers
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01About Sins of a Solar Empire®: Rebellion
Lead a spacefaring empire in a blend of real-time strategy and 4X: explore, expand, exploit resources, and fight for supremacy. Choose Loyalist or Rebel factions, build fleets, and bring Titans and capital ships into battle. Steam player reviews: 93%% positive from 10,254 reviews. Supported interface languages: Simplified Chinese, English, Japanese, French, Italian, German, Polish, and Russian. Released June 12, 2012.
Credits
Developer
Ironclad Games Corporation · Stardock Entertainment
Publisher
Stardock Entertainment
Lowest recorded in 36 months
$4.002026-04-20 · GreenManGamingBase game · same records as the chart above; USD history, not a regional Steam low.Language support
| Language | Interface | Subtitles | Audio |
|---|---|---|---|
| Simplified Chinese | Yes | — | — |
| English | Yes | — | Yes |
| Japanese | Yes | Yes | — |
Show 5 more languages
| Language | Interface | Subtitles | Audio |
|---|---|---|---|
| French | Yes | — | Yes |
| Italian | Yes | — | Yes |
| German | Yes | — | Yes |
| Polish | Yes | Yes | — |
| Russian | Yes | Yes | — |
Steam PC edition data · 2026-10-19
02Before you buy
Play modes
The Steam PC version supports single-player and multiplayer, including co-op.
Language and audio
English is a supported interface language and has full audio.
03Frequently asked questions
What does the faction choice change?
Each race can be played as Loyalist or Rebel, unlocking distinct technologies, ships, and play styles.
What are the victory conditions?
Victory can come through military, diplomacy, research, occupation, or conditions involving the last flagship or capital ship.
Can I command Titan ships?
Yes. Each faction can field a Titan with its own strengths and battlefield abilities.
Popular Steam reviews
Native-language selection · 10 reviewsSelected helpful reviews in this language show both recommendations and criticisms. This selection does not represent the overall positive rating; opinions reflect the version reviewed.
RecommendedSteam player
Please follow United Critics for quality reviews Sins of a Solar Empire Rebellion Review Before going into review, I want to make some points clear: • I have played the base game of the mentioned title, so there will be no content related to the DLC • Opinions may differ • Don’t mind the things I have typed in parenthesis The following is the review of the game Sins of a solar empire: Rebellion. The game is developed and published by Ironclad games and Stardock entertainment. Sins of a solar empire: Rebellion is a standalone extension of Sins of a solar empire series. Tags: Real time tactics, Space sim, 4x, RTS, PvP Story The story of the game is good at most. It is the generic story of you is in space doing research and mining resources (and other space stuff) and suddenly some aliens come and attack you for no good reason, then you retaliate and the battle gets dragged for some decades. between the races there is also a rebel faction which may fight against the same race since their interests are not similar. This kind of story may not be the best but it is fitting for the game since it is never-ending in its own way. Although one thing that is very impressive is the storytelling. The voice actors have done a great job and gave life to the dialogues with their amazing acting. Gameplay and Mechanics Since this game is different from the many action-packed popular genres, I'll add some information on the gameplay and not only just share my thoughts. The gameplay is slow-paced but interesting. Rather than having a quick victory within some minutes you have to achieve it slowly and steadily which makes it worth it. You will start from a single planet and from there you have to collect resources which are going to be used in building structures and ships, then build different structures that will provide you with different advantages, set up defenses to protect your planet from invasion, create your fleet to protect your planets as well as conquer enemy and unknown planets and other celestial bodies and find the enemy home planet. The first player to conquer the enemy home planet will be decided the victor, although this is the primary way to achieve victory but you can win if you turn on other victory methods before starting the game like flagship victory, research victory etc. Each have their own conditions to win the game. There are many different types of celestial bodies in the star system with very first being the star of the system, then there are planets with different terrains as well as asteroids too. You have to find, conquer, colonize, fortify and start collecting resources. There are three main resources being the crystal, credits and metal, which can be obtained by trading, mining for crystal and metal and collecting taxes for credit. They will be used for building structures, doing research and as well as doing trades. Rest of them will be mostly related to expanding the fleet and can get upgraded in the research tree in their respective sub-section in the research tree. There are also a variety of options available in terms of structures but they fit in 2 main categories, logistical and tactical. Both of them have many different structures to build and they have their own properties and importance. Creating fleets is where you make many different types of airships for battling and it is essential to move forward in the game. While you have many different types of ships available to build but you have to think well before making any type of ships since even if you can increase the number of ships but you can only build a certain number of ships. Only one titan which can be said to have the best offensive and defensive structure of the game and can be the game changing factor in some cases. Each of the structures will be explained well when you play the game. Your planet/celestial body can only house a certain number of structures and your fleets can only have a certain number of ships, although you can upgrade them in their specific research trees to have more space to build structures and ships. The player has to consider well and compose their fleet of the ships which will help. The map looks medium sized or even small at first, but will gradually get bigger when you start to explore other planets and asteroids, doing so will show you other routes connected to more planets/ celestial bodies. This will keep going until it is going to look like a massive spider web of a star system. Option of setting key binds for different things is available in the game and it will be very helpful and makes the gameplay much more accessible. There are variety of maps to pick from and even the smallest of them have 15 planets. The resource management is kept simple and interesting at the same time as there are only three primary resources but the player has to think well for where to use them first. There is also the black-market in which you can buy or sell your resources for credit which can be helpful at some times. The pirates are a very unique variable, they can either be a big help or a big problem which makes the flow of game unpredictable. The research tree is very big and complex like a puzzle which you have to solve patiently. You have to unlock all the upgrades and new and advanced structures by researching different elements which provides more options and helps us improve our structures and ships and gain advantage and it may feel slow for some players. Online/Multiplayer Mode Everything you have in single player is also available in this mode but you are going to play against other players instead of AI. You can join a public lobby or make your own and invite your friends or join a friend’s lobby. The lobbies are kind of dead for me. There were hardly players present in the lobby which were not responding to my match invitations for a game. Finally in my opinion, you are better off playing single player and you can try online if there is someone who agrees to play with you. Audio The soundtrack of the game at most fits the scene, and that’s it. You have grandiose music playing in the background and when you start battling hostiles the music changes although it didn’t feel like any change happened to me (maybe it is only me) not to mention when playing competitive the music may become a disruption. Art The art in this game is amazing. You can see how nicely detailed they are by zooming in to the structures. They look very polished and detailed. Especially the alien ships, their designs were cool and the background was well done. The cinematics were great but the unfortunate thing is that there was only one cinematic shown during the starting of game and starting a new game in single player mode. I would personally never skip if the cinematics were of this quality. Pros: • Amazing visuals • Many different ways and ideas to play game • Excellent in terms of strategy • Good option for people who are interested in space theme Cons: • Mediocre soundtrack • May not be for everyone’s tastes • Limited cinematics in terms of quantity • No actual story mode to play (after seeing that cinematics, I consider this a con) Conclusion If I want to explain how I felt playing this game then it will be it is like chess but there are multiple enemies and you can attack at anyone’s turn. This is the type of game which anyone can play but only dedicated players can finish. In terms of strategy this game excels at it, although it will look complex and scary with so many buttons at first but you will get to understand how to play efficiently gradually. The optimal way to play the game may be tough for the players. This game is worth the buy for people who are very interested in strategy since this game is a bundle of different types of strategies added in one. Rating: 8/10Show moreShow less
2,267.7 hours at review692 people found this helpful
Received for free
Not recommendedSteam player
Unfortunately the online community of this game is incredibly elitist. If you're looking for a multiplayer RTS to get into don't bother with Sins. Lobbies take up to several hours to start and the players will kick you right at the very end if they notice you don't have several dozen games under your belt (each of which takes several hours at least). I'd like to iterate that Sins is a great game. However for new players attempting to get into it is a waste of time as you will simply not be able to play. The community has essentially written its own obituary and it reads "I'm sorry I'm going to have to kick you."Show moreShow less
5.8 hours at review490 people found this helpful
Received for free
RecommendedSteam player
I am a ruler of a facist goverment that murders millions, of billions of augmented humans, humans, and aliens. I destroy entire planets with intergalatic super weapons. But no one really cares because free healthcare.Show moreShow less
93.4 hours at review372 people found this helpful
Not recommendedSteam player
save your money and go buy the previous games, because it's the same thing. (and DRM free) no real changes, same old price tags. (and DRM free) 0/10 - would light on fire if it wasn't digital. The DLC is pre existing mod materials repacked and branded with a stupid price tag. don't buy them as FREE modded versions have existed for years now for this and all previous tittles. (execpt the sound track*) lol, more fun updates. went to start this up to try a few mods out, BAM extra registration that ISNT advertised on the storepage. DRM=EVIL STARDOCK=DRM STARDOCK=EVIL ♥♥♥♥ YOU STARDOCKShow moreShow less
7.5 hours at review298 people found this helpful
RecommendedSteam player
This is the best game I know. Fantastic 4x play that kept me coming back for years, and I think it will be a future classic. There are about a half dozen full environment mods for this game and lots more resources in general. We need a strong, 64 bit reboot of this game that allows us to use the power of modern computers. I know I'd buy it and every DLC they come out with.Show moreShow less
8,620.2 hours at review272 people found this helpful
Not recommendedSteam player
I'm on the fence about this title. It's a very fun and enjoyable game, and for that I recommend it. HOWEVER, fans of the original SOSE should know that the publisher, StarDock, has made a complete 180 on the subject of DRM and their treatment of customers since they originally published their "Gamer's Bill of Rights." If you are a die-hard opponent of DRM, I can not recommend giving them your money to buy this title. They have made it a requirement now to register a Stardock account to activate the game, and you only get one activation. TL;DR: If you don't care about DRM, this is a good game if you like the genre. If you do, however, giving stardock your money now, for this, sets a bad example. I wouldn't have bought it if I had known. Now that I have, though, I'm enjoying it. If you don't want to buy this because of the DRM, look into the original SOSE title, as it was published 100% DRM-free. Buy that instead, as it's really not that different from this expansion.Show moreShow less
18.1 hours at review244 people found this helpful
RecommendedSteam player
So what's good about this game? Well let Swerve tell you! This is going to be long as hell since I used to play the orginal a crap ton 3 years ago! So gather round children! Grab a seat and listen to the great story I am about to tell! Diplomacy: The game provides a pretty solid diplomacy system that fits in very well with the backstory of the game. This means that it's harder to ally with Vasari rebels when you're a Vasari loyalist, unless you already premade the teams ofc. The computer or player can give you missions, if you choose to do them will improve your relations with them. Eventually if they like you enough they ask for peace treaties, powerful pacts (These buff both of your factions), trade agreements, ect. Even though diplomacy is useful in a game, it's not the core aspect of this game, you shouldn't buy it expecting it to be a game like Anno 1404 where war is only an option. Your goal is to kill everyone, not to make peace with them. TL;DR Overall it's a nice mechanic, it fits with the story, highly dynamic, and very diverse, but not the main focus of the game. Combat: Personally, I think the combat is very simple. You have your ship types: -The Frigate : Light, fast ships. Most are used for offensive means such as taking out strikecraft or bombing planets. Some are better at taking out other ships than others. I wouldn't call it rock paper siscors but it's kinda close to it. -The Cruiser : More expensive, but provide much more firepower and/or support than frigates. Enforcers/Crusaders/Kodiacs are probably going to be the front line of your fleet. -Srikecraft : I feel I had to put this in somewhere. Strikecraft can only be created by Carrier Cruisers or Capitalships/Titians. They cannot be targeted by normal ships so you either need to counter them by using more strikecraft or use specialized frigates to take them out. They do a crap ton of damage if you leave them unchecked. Strikecraft have 2 types: -Bomber (Good at taking out bigger ships) -Fighters (Good at killing bombers) -*Advent only* homing mines (They're mines) -Capital ships: These are essential for any fleet. They are very expensive *You get your first one free, so pick wisely" and very powerful ships that provide ALOT of utility and/or damage to the fleet. They are tanky, and usually the first, or last to go down. They act like Warcraft 3 heroes where they level up if you gain enough experience from killing things. These levels unlock abilites for your capital ships that do various things. (Ex. Kol Battleship, The ability "Finest Hour" gives him massive Health Regen and lowers cooldowns on his other ablities) -Titians : These things a freaking scary. Huge warships each faction/subfaction gets a specific one. They do alot of damage, they provide HUGE utility (Ex. The TEC Loyalist Titian buffs his allys with reduced weapon cooldown and gives them all more shields). It takes 5 points of research to fully build one, and even then It costs alot of money. It's best used in late game. -Starbases : These things are broken. I've turned around entire games using these things. They do LOADS of damage. You can counter them with a ship specialized in destroying buildings, because they out range them, unless you put them in the middle of the damn phase lane! Thats right, you can place them right where you enemy will enter and they wont even get a chance to say their prayers. And if you're TEC Loyaist, you can have 2. gg -Pirates! If you ever play TEC Rebels you need buy a pirate fleet. Seriously. They have the best voice acting N/A. It's hilarious. There will be a pirate base on almost every map, you can place bounty on annother faction and they will attack the person with the most bounty. They don't have shields, they're kinda easy. Cool feature tho. Diversification: I think the ships are very well-designed. Each have their own jobs and none do the exact same job. They all look very different from one annother and are very detailed. They're voice acting is very professional. Overall they did a good job in diversification the different ships. Mechanics: The victor of a battle is mainly determined by whoever has the best ship composition and the most research. It's very rock paper siscors-esk. It's simple, you have shields, that protect the ship for so long and then breaks and then it does health damage, if it reaches zero the ship splodes. There's no complex locational damage, They all just kinda stand still and hit eachother until they die. Realistically, no captian in his right mind would just stand there and let his ship get rekt. But it's based off an old engine so I'll let it go. However! The battles are epic as hell! Pretty lasers, Strikecraft flying all over the place, Capital Ships using they're cool guns. They look very pretty, but nothing else. Economy: Economy is simple as well. The 3 resources you have is Credits, Metal, And Crystals. You can get credits from planets, which you can upgrade to house more people to tax. You can get metal/crystal from extractors that can be built on asteriods orbiting the planets. You can also research and build trade ports and oribal refineries/Matter Processers. TEC are very good at amassing credits. The Vasari are very good at getting minerals. The Advent are mixed. You also have a thing called "The Black Market" where you can buy and sell metal and crystals. It acts like a regular economy and if you sell too much the market crashes and it sells for literally nothing. If you buy too much the market booms and I think the price goes up by alot. Doesn't stop me from buying crystal tho, because lord knows I always need crystal. >.> Every resource is renewable. It will never run out. However the more fleet upgrades you invest in, the more it will effect your economy (7 to 80% deduction without pacts/supply reductions). It actually makes turtling viable, and I KNOW EVERYONE ABSOLUTELY LOVES PEOPLE WHO USE THE GOOD OL' TURTLE STRATEGY. Overall the economy is like every other RTS. Just without gatherers or giving a damn about exhausting resources. The Art: This game is beautiful. I love it. Every planet, ship, and building is 1080p and professionally crafted. The battles are awesome because of all the colorful lasers. Every race has different ships which look just as professional as all the others. Voice Acting: Good stuff mayne. Professional voice acting. The voices fit the theme in ships ( Ex. TEC Rebel Titian "I put the laughter in slaughter!"). Everything just fits. P.S. Whoever voiced the pirate ships deserves a metal. Story: Even though this game has no campaign the opening cinimatic really gives you a good feel of the current state of the universe. The whole ambiance of the game gives off a desperate feel. Every race is tired of fighting, but cannot forgive eachother for the horrible atrocities that they committed against eachother (Hence the name Sins of a Solar Empire). Every side will do whatever it takes to win. If you want to buy this game for story, there really is none besides the opening, sorry, play Mass Effect or something. Conclusion: This game brings a unique twist to the 4x genre. Providing a slow pased game that keeps you interested and on your toes. It includes a large research tree, many ships to choose from, very diverse races, and very pretty art. Though kinda simple it still holds a place in my heart. This has to be one of the best 4X games I've ever played. I'd say it's worth buying. (insert X/10 joke here) Couple of edits for the new update: So the new update came out completely revamping the engine from 32 bit to 64 bit. Which is great because the biggest issue was crashing around late game when you're in 4+ player maps. It's mainly good for modding since the limitation was 2 gigs, but I haven't seen a HUGE change in 6+ player maps, it still gets laggy, but no crashes I guess. I still wouldn't recommend going 6+ player maps without small fleet sizes and no strikecraft.Show moreShow less
220.2 hours at review270 people found this helpful
Not recommendedSteam player
After playing a few more hours of this game, I have decided to edit my review. I still do not recommend the game and the reason for that is because this games enjoy-ability and replay ability is too highly connected to the multiplayer experience. An that experience from the perspective of a new player is terrible. After reading some of the comments I decided to try and give the game another go and play some random multiplayer games. I was sadly met with the same experiences that I described before of being kicked from the multiplayer lobby due to my game count number. Also if you're not recognized as a "regular" player, your spot will be taken by anyone coming into the pre-game lobby chat, and yelling "SPOT" an you will be kicked. Regardless of how long you waited for the game to fill up, which leads you to wasting your time and not end up playing the game at all. I will say however that if you have a group of friends whom you're just playing this game with then this is not and issue. The actual game itself is a well balanced RTS game, and I really enjoyed the game itself. I wish their was more than the three in game races, but their is enough variety to keep you entertained for a while. An i stress for a while. The single player offline game-play isn't engaging enough to keep you hooked for a long time. Its not and overly complex game. Their is no story mode, and no in game quest to achieve. The thing that keeps this game engaging is its multiplayer aspect. An once you remove the multiplayer component the game is boring. Playing against other human players is what makes this game fun. I hope this helps people get and idea of what to expect from the game. An make a decision one way or the other.Show moreShow less
21.8 hours at review126 people found this helpful
RecommendedSteam player
Free on Humble Bundle for a limited time! Go get it!!!Show moreShow less
8.6 hours at review260 people found this helpful
Not recommendedSteam player
It uses extra DRM which requires you to make a stardock account. But if something goes wrong creating a stardock account from withing the game (like a too short password) you just get "error 113". A bad start for a Steam game. If you can live with it, the game is OK. To give others a warning about that "extra DRM on top of Steam", no recommendedation.Show moreShow less
1.5 hours at review110 people found this helpful
Source: original Steam user reviews. Helpful votes are an archived snapshot, not live data. Last collected: 08/15/2026.