Often, when I buy games from GOG, I find that time has either not been kind, or I really liked some fairly average games (or maybe a mix of both?) TIE Fighter is not one of those times. It was and remains one of the finest space sims ever made, with a challenging (but not frustrating) difficulty level, excellent mechanics, a wide variety of Imperial ships to fly, and graphics which have aged remarkably well (at least on the DOS CD version, the win 98 version has some horrid low res textures that actually look worse than the '94 Gourad Shaded ones) Frankly, for £6/$9, if you have a joystick get this game.