Sigma Theory

In-app purchases
3.8
76 reviews
1K+
Downloads
Content rating
Teen
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About this game

Sigma Theory is 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.

STORY
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.

THE ULTIMATE ESPIONAGE SIMULATION
Turn-based espionage: Use your special agents to dominate the world. Seduction, blackmail, manipulation, industrial espionage… Every low blow is both permitted and encouraged.
Dynamic narrative: Develop and manage your relations with over 100 NPCs: lobbies, armed groups, politicians… Alliance, deception or assassination, you choose.
Field operations: Direct the kidnapping of your targets during gripping pursuits through the world’s greatest cities. Discretion or direct confrontation, your agent’s life is in your hands.
Updated on
Nov 17, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.0
72 reviews
Sweet Balls
January 1, 2023
I only give it one star because I already pay $6 for this game, only for the countries I always main in the Steam version (USA, China, South Korea and Germany) to be in the pay wall for another $4?! Which is all free in the Steam version ffs! Those countries are not even unlockable here in mobile version once you finished the game using the free countries you have. Steam version dlcs only have Nigeria and Brazil in the paywall and they cost $2 each. Sheesh!
29 people found this review helpful
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Samer Khawaldeh Hernandez
November 3, 2022
Game is very fun but has game breaking bugs the dog replaces the dog even when you dont want too you end up with having 5 agents but only 4 or if an agent gets arrested they also fly back home at the same time. Or my favorite which breaks the game completely unplayable after a cut scene or a mission extraction you can't click anything or move the map at all rendering the game impossible to continue and yes they keep refunding the dlc twice i bought it twice refunded
11 people found this review helpful
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Misha Bakunin
June 22, 2023
Occasional bugs. Hard to master, but easy to approach. DLC is a rip off considering you already bought the game, but it does make it much better. This game has kept me addicted for days, so despite the negatives I'll still give it 5 stars.
4 people found this review helpful
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What's new

• Sigma Theory is releasing now!
• Bug fixes and improvements