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Sigma Theory: Global Cold War

in library

3.3/5

( 47 Reviews )

3.3

47 Reviews

English & 4 more
Offer ends on: 10/07/2025 09:59 EEST
Offer ends in: d h m s
17.994.49
Lowest price in the last 30 days before discount: 4.49
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
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Sigma Theory: Global Cold War
Description
STORYFrom 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 o...
User reviews

3.3/5

( 47 Reviews )

3.3

47 Reviews

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Product details
2019, Mi-Clos Studio, ...
System requirements
Windows 7 / 8 / 10, 1,3 GHz CPU, 1 GB RAM, NVIDIA GT 440 or AMD Radeon HD 5550 w/ 512 MB, 1 GB...
DLCs
Sigma Theory: Global Cold War - Original Soundtrack, Sigma Theory: Brazil - Additional Nation, Sigma...
Time to beat
4.5 hMain
6.5 h Main + Sides
14.5 h Completionist
7 h All Styles
Description



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
Popular achievements
Goodies
Contents
Standard Edition
Deluxe Edition
soundtrack (MP3)
DLC: Sigma Theory: Nigeria - Additional Nation
DLC: Sigma Theory: Brazil - Additional Nation
System requirements
Minimum system requirements:
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
Safety and satisfaction. Stellar support 24/7 and full refunds up to 30 days.
Time to beat
4.5 hMain
6.5 h Main + Sides
14.5 h Completionist
7 h All Styles
Game details
Works on:
Windows (7, 8, 10, 11), Linux (Ubuntu 16.04, Ubuntu 18.04), Mac OS X (10.11+)
Release date:
{{'2019-11-21T00:00:00+02:00' | date: 'longDate' : ' +0200 ' }}
Size:
609 MB

Game features

Languages
English
audio
text
Deutsch
audio
text
français
audio
text
русский
audio
text
中文(简体)
audio
text
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User reviews

Posted on: December 29, 2024

fistofenkidu

Verified owner

Games: 31 Reviews: 2

One Lame Duck

It's basically a board game with all dice rolls. If you got this like me expecting a grand strategy game of esiponage and counterplay... it's not that. It's basically a mobile-game quality virtual boardgame, and I don't think you can at least play it with other people though MP isn't my thing so I didn't look for it. Tries to be deep and sell you on this story about how new tech could change the face of the world, but you'll never see it. Give this one a pass, even at less than five bucks when I purchased it 80% off, it feels like I overpaid. I probably would have played this for free on my phone. It's just not worth it. It's all random dice roles, very little actual choice, and the game will even tell you're losing as little as one turn after the game starts because it's all just random faff.


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Posted on: May 26, 2023

michael_x777

Verified owner

Games: 123 Reviews: 13

Nice simple and challenging TBS

Simple and beautiful design, challenging but nevertheless fun gameplay, which requires balanced set of your agents party from the beginning and careful management through all the game. You must think about every turn and use the maximum of your resources in the best way possible to defeat this game. I got the best ending only in the third walkthrough, so it requires some luck too. This game is like Fermi Paradox, but much more developed and interesting.


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Posted on: August 13, 2023

wolfenspiel

Verified owner

Games: 506 Reviews: 21

Attention Developers

Fun game, but needs a little polishing. Could benefit from a Save Game feature, as game hangs up or crashes on occasion. Balance is off as well, even on Easy, could stand some tweaks. Features I would like to see: At least unlockable ability to add one or two more field agents A slightly longer Doomsday Clock Ability to add at least one or two more scientists to research Ability to attempt assassination of scientists and diplomats, even with repercussions. Otherwise, absolutely a great game, played three missions and getting ready to play a fourth!


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Posted on: October 11, 2024

Mjsads

Verified owner

Games: 5 Reviews: 2

Only for a short fun

This game is good only for a short time it gets repetitive and boring. Its hard and its GLITCHY.


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Posted on: April 29, 2025

Oito

Verified owner

Games: 218 Reviews: 4

1st didnt know how to play now i love it

If you like strategy and board games, and you enjoy using your imagination, this is the best spy game you'll find today. It has a fairly high barrier to entry, but once you begin to understand it, you'll begin to immerse yourself in the world of espionage and international conflicts. Choosing different agents during each game adds a unique twist to the beginning of each game. Adding to the challenges of managing diplomatic relations and dealing with criminal entities, and adding to the effects that the various Sigma technologies have on the game, this game makes for a very rewarding experience.


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