GOG is holding its first EA game sale of the year, and Wing Commander is 60% off this weekend. No bundling is required, so this is a chance to pick up individual games, their expansions and associated bonuses for just $2.39 each. The entire series including all DOS and Windows WC games is under $20! Quite a few other Origin titles in the Ultima, Crusader and other series are also on sale. Check out the full deal here.