May the Fourth be with you. In celebration of the made-up Star Wars holiday, both GOG and Steam have put many classic Star Wars games on sale. There are numerous games available, like the original Battlefront II, Knights of the Old Republic, Republic Commando, TIE Fighter Special Edition, X-Wing Alliance, and X-Wing vs. TIE Fighter.
Both stores have great prices on these classic games. It isn't quite the deal you could get two years ago with the original Humble Star Wars Bundle, but this sale also has a few games that package didn't.