Command & Conquer Tiberium Twilight is a real-time strategy game for the PC, released in 2008. It's the fourth installment in the Tiberium series. The game features a new campaign, units, and gameplay mechanics. It requires an internet connection to play. Experience an epic story unfolding in the universe of Tiberium that focuses on an impending galactic war. The game is considered the culmination of the series, ending the conflict between Global Defence Initiative (GDI) and the Brotherhood of Nod. This is a DVD-ROM version and requires a PC.