Humble Bundle - Firaxis
 

There's an amazing Humble Bundle going on right now featuring Firaxis games.

For about $15 you can get the following games:

Beyond Earth
Civilization V (plus DLC)
Civilization IV (Complete Edition)
Civilization III (Complete Edition)
X-COM complete pack (new and old games)
Sid Meier's Pirates!
Sid Meier's Starships
Ace Patrol

If you're a fan of strategy games, you'll want to jump on this one.