Command & Conquer: Red Alert 2: Yuri's Revenge

Yuri's Revenge is the official expansion pack for Command & Conquer: Red Alert 2. The storyline picks up right where the canonical Allied ending from Red Alert 2 left off. While the Allies concentrated on regaining territory and fighting off forces loyal to the now former Soviet Premier Romanov, the latter's advisor Yuri secretly raised an army of his own, using his immense knowledge of psionics and genetic mutation. As Yuri announces his presence and plans, a global network of devices called psychic dominators comes online in an attempt to enslave the entire world. The American president Dugan orders an air strike to destroy one of these devices on Alcatraz island, and although the attack failed, a crashed Harrier damaged the device's power supply.

The aforementioned Yuri's army is also the first time that a third faction is present and playable in the series, and is available in skirmish and multiplayer modes. Its technology is entirely separate from those of its rivals, and makes extensive use of mind control and various means of disabling enemy units and structures (e.g. Magnetrons can lift vehicles to their location, while Floating Discs can disable or otherwise exploit enemy structures while firing on units). Other factions also get new units and structures (particularly as the Soviets lost almost all technology related to Yuri's work), and all factions get a common late-game support power, the force shield.