GoG have added yet more Star Wars titles to their store, just a few days after the last batch.
Up today is the incredibly slow and ponderous mega-strategy game Supremacy (titled Rebellion in the USA), which I found so boring that just looking at the box put me to sleep. However, other gamers swear by it due to its slow-boiling, long-term planning. Also the fact that you can have multiple Death Stars running around blowing up planets.
Considerably less dull, although still not great, is Empire at War. This RTS was released in 2006 and enables the player to pit the Empire and Rebels, Separatists and Republic against one another. It wasn't a great game, mainly down to some very stilted ground combat, but some of the space battles were passable. This version includes the Forces of Corruption expansion, and there are many mods out there to improve the game experience.
More well-known is action game Rogue Squadron. Whilst not a patch on the X-Wing series, Rogue Squadron is a much more accessible arcade blaster.
GoG will release four more Star Wars games on the 27th. These are the brilliant Jedi Knight: Dark Forces II (presumably with the Mysteries of the Sith expansion included), the so-so Starfighter and the superb tactical FPS Republic Commando.