The latest Humble Bundle will most certainly hold some appeal for strategy fans, as it offers a selection of Sid Meier's most iconic games.
The basic bundle includes the complete editions of Civilization III and Civilization IV, as well as Ace Patrol, Ace Patrol: Pacific Skies and Sid Meier's Railroads!
Paying over the average unlocks Civilization V and the first expansion pack, Gods and Kings. Paying over $15 will unlock all that and the recently released Brave New World expansion.
For even more strategy gems, there's currently a mid-week Paradox sale on the Humble Store, offering discounts on titles such as Europa Universalis IV and Crusader Kings II.