Great game for a the times it has crashed on me. I love the tech tree and how there are an orbital tech tree and then one for on the surface of planets. I love the fact that you have to survive but your not always being chased by something. No due date or else kinda of thing. the missions have just enough difficulty to keep you interested. So many things to learn in this game. even though it has crashed a few times I would still recommend this game to anyone that likes this type of game.