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About
A Turn-based Strategy game in a futuristic global cold war from the award-winning creators of Out There. Recruit a squad of special agents and run your intel agency to secure the control of the singularity.
Where to buy
Prices for US · Updated 10/1/2026
News
Sigma Theory, a sci-thriller thriller depicting a futuristic cold war, is out now on Android and iOS - Pocket Gamer
Pocket Gamer · 10/19/2022
Sigma Theory: Global Cold War. Strategies You Missed in 2019 - Gamepressure.com
Gamepressure.com · 1/27/2020
Spy your way to glory in Sigma Theory: Global Cold War, out now - Rock Paper Shotgun
Rock Paper Shotgun · 11/22/2019
Sigma Theory review (early access) - Rock Paper Shotgun
Rock Paper Shotgun · 4/30/2019
Sigma Theory: Global Cold War – Review - MKAU Gaming
MKAU Gaming · 4/24/2019
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