Command & Conquer 3: Tiberium Wars

It's 2047 and the stakes couldn't be higher. Tiberium - a self-replicating alien substance that has infected Earth - is spreading like a radioactive ice age. The GDI - a community of highly technical countries - is fighting to suppress Tiberium, but Kane - the megalomaniacal leader of The Brotherhood of NOD - has other plans for Earth. His secret society wants to use tiberium to turn humanity into Kane's twisted vision of the future. The fate of the planet is at stake for Tiberium.