Since launch, the Humble Indie Bundle has expanded its mission considerably, releasing everything from music to novels on a pay-what-you-want basis. Its latest bundle, though, is laser-focused on one man: game designer Sid Meier. The Humble Sid Meier Bundle includes the complete edition of Civilization III and Civilization IV, as well as 2013 tactical dogfighting game Sid Meier's Ace Patrol, followup Ace Patrol: Pacific Skies, and 2006 business sim Sid Meier's Railroads. Ace Patrol was originally released on iOS to fairly good reviews before coming to PC, but only the PC port is included in the bundle.

As usual, pay more than the average (currently around $6.75), and you'll get Civilization V as well as its Gods and Kings DLC, which prompted some deep examination of the series back in 2012. The sale also includes one extra title at a hard limit of $15: Brave New World, last year's DLC pack. The bundle runs for the next two weeks, and while past bundles have usually included the option to send some of your payment to the EFF and Penny Arcade charity Child's Play, this bundle will help support Action Against Hunger.