Civilization 5
Civilization 5 demo download has been released by 2K Games as the development of the Civilization 5 free download is over now. The full game would be releasing on September 21 and Firaxis and 2K Games previously stated that they would be releasing the demo version of the game prior to that date. But the things changed later on. It was mentioned that there would be no release of Civilization 5 demo version prior to the full version release. HEnce Civilization 5 demo download was set for release on the day of the full game release only.
Developers were quite confident of getting the demo out before the full release but as the things were not over so there wasn't any possibility of releasing the Civ 5 demo earlier. However the things have changed now. As the full version of the game has released, so is the Civilization 5 (Civ 5) demo version. It weighs around 2.5 GB in size, so you need high speed Internet to download it as fast a spossible. You can download Civilization 5 demo version from here.