Command & Conquer 4: Tiberian Twilight (abbreviated C&C4) is the final game set in the Tiberium Universe and is the direct sequel to Command & Conquer 3: Tiberium Wars and Kane's Wrath. The game departed from the standard RTS gameplay of most other Command & Conquer titles, removing conventional base building and utilizing mobile bases in the form of Crawlers. The gameplay focuses on fewer specialized units, resembling a real-time tactics (RTT) formula.