Firaxis has produced several games, including Gettysburg and Antietam, based on their namesake famous American Civil War battles. Sid Meier's SimGolf was a co-production with Will Wright of SimCity and The Sims fame. Alpha Centauri is a space colonization game taking place in the namesake star system. Perhaps their most popular release has been Civilization III, a sequel to Meier's Civilization series.
Currently, Firaxis is developing an update of Meier's classic computer game Pirates. It is planned to be dubbed Sid Meier's Pirates.