Civilization 5 is also on sale on Steam for $7.49 (regularly $29.99), a 75 percent discount effective until Monday, June 10.
ET today and will last until Sunday, June 9, at 4 p.m.
The free-to-play weekend on Steam began at 1 p.m. Sid Meier's Civilization 5, Firaxis Games' turn-based strategy game, will be free-to-play and heavily discounted this weekend on Steam and at other online retailers, the developer announced today.
