The Steam summer sale really is the gift that keeps on giving, and the latest title to see a massive discount is Sid Meier's Civilization V. Enjoying 75% off the regular price, Civilization V can be yours for just $7.49 for a limited time only. Better still, the gold upgrade pack and Cradle of Civilization DLC pack are both also reduced by 75% for the same limited time.
Civilization is one of the biggest hitters in the turn-based real-time strategy world, and needs little introduction to fans of the genre. Establish your own civilizations from the early days of man through to the age of space, wage battle against opposing civilizations and become ruler of the world. At the time of writing you've got 27 hours left to grab this latest great deal from Steam, and the one-time purchase price will also give you access to the Windows version as well. What are you waiting for?!