Turn-based futuristic global cold war simulation from the award-winning creators of Out There.
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Available: 2019


Recent updates View all (9)

December 7

2 new agents revealed!

Dear agents,
With Robber and Ansturm, Germany proves again it can provides world-class operators.

Code Name : ROBBER
Real Name : Thea Lamm
Origin : Germany

Thea is not motivated by money, boredom drives her to rob banks, just because she can. Whether infiltrating a bank in broad daylight to hack accounts, or in the middle of the night to steal gold bars, her crimes are rarely accompanied by injuries or violence.
She turned herself in to the police two months ago and is currently in a high-security prison in Hamburg while she awaits her sentence. But we know that she deliberately got imprisoned just to give herself the challenge of escaping.

Especially well-suited for hacking operations.

Particularly elusive, this agent will almost never be detected by counter-espionage.

Code Name : ANSTURM
Real Name : Erick Wildenbruch
Origin : Germany

Our investigations show that Erich's idyllic childhood in Munich is a façade that, for various reasons, he wishes to hide. When he was 18, he joined the German army serving in Europe where he displayed the qualities of an elite commando.
His excellent leadership qualities saw him become a colonel, though he soon came to regret leaving field operations behind. Now is the time for to recruit him as a high-level field operative.

Firearms Expert
In armed confrontations, this agent is particularly deadly.

Driving Master
More proficient behind the wheel of a vehicle during exfiltrations.

This agent is highly scrupulous and less than effective at bribery.

This agent will never resign, no matter far they are pushed.
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November 16

Contest : 10 keys to win!

Double K has a new riddle to decypher. Report the answer directly to agent Kepi Blanc in our Discord headquarter. 10 Steam keys are at stake. Good luck, agents!

Official Discord Server
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About This Game


From the creators of the award-winning sci-fi game Out There...

In the near future, a paradigm-shifting scientific discovery looms over the world, promising radical new technologies. The world’s superpowers realize they could have the power to destroy the global financial system, wipe out entire countries or even gain access to immortality.

However, this discovery — called “The Sigma Theory” — can only be harnessed by a handful of scientists. You are placed at the head of your country’s Sigma division. Your objective is to ensure that it is your nation that reaps the benefits of Sigma Theory before anyone else.

To achieve this you will have powerful resources at your disposal: a cadre of the world’s most elite covert agents, advanced tactical drones and, of course, your own skills in diplomacy and subterfuge.

It’s a cold war out there, one in which mankind must face up to its future.


  • A bold new take on the espionage game genre, set during a future global cold war
  • Recruit your team from 50 unique spies and field agents
  • Turn-based strategical and tactical-level gameplay
  • Order your spies to conduct operations all over the world
  • Experience tense and thrilling exfiltration missions where you guide your agents on a covert operation to extract high-value targets from foreign cities
  • Infiltrate the enemy’s Sigma programs, abducting, coercing, and seducing scientists to your side
  • Deploy your drone fleet to turn operations in your favor
  • Deceive or cooperate with your rivals during diplomatic summits
  • Use your diplomatic skill to balance the demands of multiple relationships: with your agents, with your superiors, with powerful private lobbies, and with your counterparts around the world
  • Discover 30 world-changing technologies
  • Hoard Sigma Theory discoveries for yourself to gain an edge in the cold war — or share them for the benefit of all mankind — or sell them to powerful private lobbies bent on preserving the old world order
  • Experience a dynamic emergent narrative where every decision matters and the complex web of character relationships means that no two games of Sigma Theory will ever be the same
  • Multiple distinct endings that respond to the player’s ethical and practical decisions throughout the game

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows Vista
    • Processor: 1,3 GHz CPU
    • Memory: 1 GB RAM
    • Graphics: NVIDIA GT 440 or AMD Radeon HD 5550 w/ 512 MB
    • Storage: 1 GB available space
    • OS: Microsoft® Windows® 7
    • Processor: Dual-core 2Ghz CPU
    • Memory: 2 GB RAM
    • Graphics: DirectX® 10 compliant graphics card
    • Storage: 1 GB available space
    • OS: Mac OS X 10.7
    • Processor: Dual Core 2Ghz
    • Memory: 2 GB RAM
    • Graphics: Hardware Accelerated Graphics with dedicated memory
    • Storage: 500 MB available space
    • OS: Ubuntu 12.04+
    • Processor: 1,3 GHz CPU
    • Memory: 2 GB RAM
    • Storage: 1 GB available space
    • OS: Ubuntu 12.04+ Desktop only
    • Processor: Dual-core 2Ghz CPU
    • Memory: 4 GB RAM
    • Storage: 2 GB available space

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