If you don't know a thing about this game then you are missing an amazing strategic game.
I've just tried it at some friend's place and I must say that I loved every bit of it.
It's a blend between an RTS game with 4X like the Master of Orion series. In difference to Sword of the Stars which tried a similar blend, Sins is more like a Real Time 4X game. You manage your space empire and have to colonize planets, develop them, get resources, build your fleet and engage the enemy empires.
It's a lot of fun, a pity that it doesn't have a story mode, but of course its strong point is in the multiplayer aspect.
If you want to know more about it you can visit its
home page.
I highly recommend it, not only to support this semi-small developers who takes some risks and produce more original games that another WW2 shooter, but also because it's a great and fun game. And I'm saying that by just playing a small game of three hours.