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.
Recent Reviews:
Mostly Positive (17) - 76% of the 17 user reviews in the last 30 days are positive.
All Reviews:
Mostly Positive (287) - 77% of the 287 user reviews for this game are positive.
Release Date:
Apr 18, 2019
Publisher:

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Sigma Theory is a strategy and spy game with many emergent situations. Completing the development with the community will allow us to deepen and balance the gameplay and take the game to places we would not otherwise have planned.”

Approximately how long will this game be in Early Access?

“The Early Access will run for 3 to 6 months.”

How is the full version planned to differ from the Early Access version?

“In addition to the community's suggestions, we're planning new contents and features: 'Story' mode for each playable countries, additional agents and NPCs, new types of exfiltration missions and more exciting stuff that will be unveiled during the Early Access.”

What is the current state of the Early Access version?

“All the features in the 'About This' section are available.”

Will the game be priced differently during and after Early Access?

“The price will be raised at the end of Early Access.”

How are you planning on involving the Community in your development process?

“We are constantly in touch with the community via the Steam forum or the dedicated Discord server, run by the dev team.”
Read more
Check out the entire Mi-Clos Studio franchise on Steam

Buy Sigma Theory

Buy Mi-Clos Studio Pack BUNDLE (?)

Includes 2 items: Out There: Ω Edition, Sigma Theory

-15%
$28.03

Buy Sigma Theory - Deluxe Edition

Includes 2 items: Sigma Theory, Sigma Theory - Soundtrack

-10%
$25.18
 
See all discussions

Report bugs and leave feedback for this game on the discussion boards

Reviews

“Sigma Theory’s dual strategy prongs are chummy diplomacy and filthy espionage”
Rock Paper Shotgun

“It’s definitely a cool, layered title that has me interested in more.”
Air Entertainment

“If you like board game strategy and micro-management this is completely a game for you.”
That Video Game Blog

About This Game

STORY

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.

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.


Recruitment
First, recruit a team of four special agents from 50 unique unlockable characters to support your missions. Each comes with their own story, motivations and traits that define their behavior during missions.
Access the investigator, soldier, hacker, seducer and other archetypes to complete your Sigma division and execute your strategy.


Espionage
When your team is ready, assign them missions around the world to gather scientists, discover compromising documents on local politicians, and more.
Exploit your agents’ abilities to seduce, manipulate and bribe your targets over to your side or have them neutralized.


Counter-espionage
Other nations will also use their agents to infiltrate your country and seize your scientists. Track, capture and interrogate them to gain information on your enemies, then exchange them for ransom when they are no longer useful.


Exfiltration
Order your agents to exfiltrate scientists recruited to your cause during gripping turn-based exfiltration phases through the world’s greatest capitals. Choose the position your drones wisely to support these delicate missions.


Diplomacy
In Sigma Theory, diplomacy is the key to achieving your goals. Meet your foreign counterparts and further your objectives using flattery, threats or blackmail. You can also recover your captured agents, advance your research, and much more. Develop your relations with powerful lobbies and armed and influential groups to obtain their favor. But be careful, they may turn on you.


Tech Tree
Sigma Theory is the cause of this cold war. Rally scientists from around the world to your cause to discover new technologies to gain the edge and change the world. Mind control, destabilization of the world economy, robot soldiers, immortality… Will you keep these discoveries for yourself or share them with the world?

Games that inspired us:

XCom, Phantom Doctrine, Plague Inc, Pandemic (board game), Rocket Ranger, Tropico, Armello, Civilization, curious expedition and so much more

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • 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
    Recommended:
    • OS: Microsoft® Windows® 7
    • Processor: Dual-core 2Ghz CPU
    • Memory: 2 GB RAM
    • Graphics: DirectX® 10 compliant graphics card
    • Storage: 1 GB available space
    Minimum:
    • 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
    Minimum:
    • OS: Ubuntu 12.04+
    • Processor: 1,3 GHz CPU
    • Memory: 2 GB RAM
    • Storage: 1 GB available space
    Recommended:
    • OS: Ubuntu 12.04+ Desktop only
    • Processor: Dual-core 2Ghz CPU
    • Memory: 4 GB RAM
    • Storage: 2 GB available space

More from Mi-Clos Studio

Customer reviews

Review Type


Purchase Type


Language


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph



Playtime
Filter reviews by the user's playtime when the review was written:



No minimum to No maximum
Display As:
Show graph
 
Hide graph
 
Filters
Excluding Off-topic Review Activity
Playtime:
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...