Sins of a Solar Empire - Rebellion
This game is awesome!
If you love any kind of complex RTS game, this is the perfect game. Its like a mix of Homeworld (one of the greatest space combat RTS games) and space empires 5. (where you can control, manage, and build ships from planets) I love being able to zoom in on massive battles exceeding 200 ships and watch individual bombers make bombing runs. (A warning to people with bad computers, DO NOT create matches exceeding 2v2 as your computer might catch on fire) There is a massive research tree allowing for tons of upgrades and unlocks. Capital ships also gain experience as they fight, allowing for individual ships to become stronger on their own through unlocking new abilities. The AI in the game have 6 or 7 difficulties making it very easy to step your way up and really get good at the game. As for the length of a whole match, battles can take a very long time, for example a 4v4 I am in the middle of is nearing its end after about 8 hours of game play. But the save game function allows me to play with friends and take breaks through allowing us to simply load the game and continue playing where we left off. I see people complaining about no campaign, and while yes I like playing through them, I find this is more of a sand box game. Casual gamers might however find this to be a little complicated. (just take the tutorial and you shouldn't have many problems.) I would highly recommend buying this expansion set, as the expansions unlock many new ships/factions.
Also, when you go to create your first match, I highly recommend setting ship speed to the maximum settings, as warping between stars can take a very long time otherwise.
All in all I give this game a 10/10 for good graphics, high replayability, and addictive gameplay that can be easily shared with friends.