This weekend (August 14-17 at 1PM (ET)), you can play Sid Meier's Civilization: Beyond Earth for free on Steam.

The Exoplanets Map Pack features six custom maps inspired by real exoplanets, including:

New players who participate in the free-to-play weekend on Steam will have until 1:00 p.m. EDT on Monday, August 17, 2015 to purchase Civilization: Beyond Earth or the Civilization Beyond Earth: The Collection for more than 10% off, and retain their in-game progress.

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