Upr gameicon
Upr gameicon
Sigma Island
Sigma Island






Appears in

Red Alert 3: Uprising


As Time Stood Still

The Sigma Island is a heavily fortified FutureTech facility, which serves as the heart of FutureTech's weapons production. It is also where the Sigma Harmonizer, the culmination of FutureTech's research, is located.


The Sigma Island is an enormous island complex, which houses multiple FutureTech Arsenals: advanced heavy-duty construction facilities designed to mass-produce powerful FutureTech weapons, such as the Future Tank X-1. However, these production lines generate massive amounts of heat, and require Cooling Towers to function at maximum capacity. It is heavily fortified, including an Airbase equipped with radar-jamming devices, preventing enemy aircraft from entering the airspace.
Sigma News

News report on the imminent completion of the Sigma Harmonizer

As the Sigma Harmonizer was nearing completion, Allied troops were deployed to the island in order to protect the device. The Soviet Underground, knowing that the activation of the Sigma Harmonizer will ensure the end of the Soviet Union, launched an assault on Sigma Island. Rupert Thornley, the mastermind behind the Sigma Harmonizer project, taunted the Soviet Commander and used the incomplete Harmonizer against the invading Soviet forces. However, despite fierce resistance, the Soviet forces managed to destroy FutureTech's production facilities, turning the tide of the battle.

The control center of the Sigma Harmonizer is even more heavily defended than the rest of the island, and is even equipped with a Proton Collider and a Chronosphere. However, the Soviet forces still managed to destroy the Harmonizer Control, ending Thornley's plans and exposing FutureTech's agendas to the world.



  • It is possible that the destruction of the FutureTech Arsenals is the reason why Future Tank X-1 is unavialable in the Allied campaign of Uprising.

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