Command & Conquer: Tiberian

"The Command & Conquer: Tiberian series is a sub-series of real-time strategy video games belonging to the extensive Command & Conquer franchise by Westwood Studios and Electronic Arts. The games of the Tiberian series are the 'original' Command and Conquer 'universe', with the first game in the Command & Conquer: Red Alert, alternate history series being a prequel to the first 'Tiberium' game, however EA has since decided that the Red Alert games would be a separate series to the 'Tiberium' series. In Command and Conquer: Tiberium Dawn, an anomalous extraterrestrial substance known as Tiberium is brought to Earth through a meteoric collision during the early 1990s. The substance's intriguing yet hazardous properties begin to fuel an escalating war between two globalized factions; the United Nations' Global Defense Initiative, who wish to prevent the proliferation of Tiberium for safety reasons, and the mysterious and ancient Brotherhood of Nod society, who embrace the substance as the herald of a new age and the next stage in humanity's evolution."

Source: Wikipedia, "Command_&_Conquer:_Tiberian_series", available under the CC-BY-SA License.