Summary: I bought and installed this and happened to pick the one with Tages DRM. I can't play the game and it's proving to be a major chore uninstalling the DRM. Every time I restart my computer I get a warning that Tages is incompatible with Windows 7 64bit and has been disabled. Buying this game was a mistake, I'd pay the purchase price again to be rid of it all.
Summary: Game is completely unplayable on (at least certain systems running) Windows 7. This includes both X3 Reunion and X3 Terran Conflict. Both games crash to desktop within a few minutes of playing -- this has been verified on TWO different systems that I own. I went to the Egosoft community support forums (Egosoft doesn't actually have its own technical support), and was advised to download the latest drivers for my systems, which I did. Same problem.
Summary: I'm not sure what everyone else is smoking, but this game is horrible. Boring and worthless. I don't care how cool the graphics are, if the game isn't fun to play, then it goes in the trash, which is where this game is heading unless I can find someone who wants it, which may be difficult. Also, I'm running Windows 7 with 4 GB's of RAM and a dedicated video card, and it still runs like crap. I would not recommend this product.
Summary: I never received this game from the seller. I contacted them after a month and they gave me a refund immediately. I highly recommend buying this game from a different source as it is a great game to play.