I am looking for a game - I'm not even sure if it exists. I love X3, own X2, owned and played and loved Freelancer and DarkStar One, but now that I've changed over to my netbook I cannot play any of my space sims. I'm looking for something that offers similar depth of gameplay and freeroaming space experience in a netbook-friendly package. I'd particularly love it if the game takes it a step farther so I can actually get out of my ship and explore planetside. I was looking at the expansion for the X: Beyond the Frontier, called X-Tension, but I cannot figure out from wikipedia or the page on Steam whether it's a stand-alone expansion, and I can't find a demo.
Any help would be greatly appreciated, I've been craving this sort of game for quite some time.