If you like Kerbal Space Program and you like space combat, you might like this game. It is literally the most realistic space combat game I've ever seen, with full orbital mechanics, realistic weapons (lasers, missiles, KEWs), and realistically-designed ships (with radiators! ) It looks kind of like a combat-oriented KSP, as you can design your own warships and fly missions in a full-size Solar System, using orbital trajectories to get in a good position to destroy your opponent. The game is, sadly, in closed beta at the moment, but from what I can tell it will be released this fall if all goes according to plan.
Spoiler: SHOW