Some Atari and Microprose titles are on sale very cheaply, but I want to draw special attention to both I-War games which are for sale now if you don't already have them. 😁

http://www.gog.com/en/gamecard/independence_war_deluxe

http://www.gog.com/en/gamecard/independence_war_2

Though I have to say that Edge of Chaos is the better title and is a lot less buggy than I-War Deluxe, it is still nice to have I-War Deluxe because it has one of the better stories than most other spacesims imo.