Best for Star Wars Fans: Star Wars: Empire at War at Amazon, 'Any Star Wars and RTS fan will love experiencing the same movie battles while gaming.' Best for Beginners: Command & Conquer at Amazon, 'If you or friends are just getting into RTS games, the Command & Conquer series is the perfect starting point.' Welcome to our round up of the best 4X games on PC. Ever since the term '4X' was coined..