
Screenshots

Watch trailer on Steam ↗Sigma Theory: Global Cold War
Mi-Clos Studio, Goblinz Studio, FibreTigre · Published by Goblinz Publishing, Fractale · Official site ↗
Mostly Positive — 76% positive (1,385 reviews) · 38 achievements
Last updated 27 Sept 2026
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.
£15.49
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Price history
Simulation, Strategy · 2019 · More £15 - £30 games
Command a squad of special agents in Sigma Theory: Global Cold War, a turn-based strategy experience from the creators of Out There. Recruit and manage your intel agency to secure control of the singularity in a futuristic setting.
About this game
Check our upcoming games!
A new country added!
About the 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 moreSystem Requirements
Will my PC run this? →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
Supported Languages
*languages with full audio support
Latest news
Press Coverage
Grab a free copy of Sigma Theory: Global Cold War on GOG
Fancy another free game during the GOG Summer Sale 2023? They're now giving away Sigma Theory: Global Cold War along with lots of games on sale. Read the full article here: https://www.gamingonlinux.com/2023/06/grab-a-free-copy-of-sigma-theory-global-cold-war-on-gogRead full article on GamingOnLinuxAnnouncementsOfficial
Sigma Theory is now available on Nintendo Switch, ios and Android
We are very proud to announce that Sigma Theory is now available on Nintendo Switch, ios and Android Prepare yourself! The mission begins now! Google play ios NintendoRead full article on Community Announcements (Extermin8)Patch NotesOfficial
Sigma Theory 20% off for the Out There: Oceans of Time new update!
For the release of the Redshift update on Out There: Oceans of Time, take advantage of a 20% off discount on Out There Omega Edition, Sigma Theory and Out There: Oceans of Time. And if you take the bundle, you save 15% more ! Out There: Oceans of Time is a game of management and survival in space. The Redshift update is the biggest update made since the release of the game. It features a brand new expedition system and a complete rebalancing of the game.Read full article on Community Announcements (Extermin8)AnnouncementsOfficial
Out There: Oceans of Time is OUT NOW!
It's finally here! Out There: Oceans of Time has launched and you can commence your journey in T-Minus 3...2...1… We thank everyone for their patience and support on getting Out There: Oceans of Time, out there! This has been a long journey but we couldn't have done it without you and we are excited to see you get involved in our communities on Twitter, Discord and Steam! If the standard edition isn't enough, allow us to present the CELESTIAL EDITION - which comes with two exclusive skins (the Celestial Suit for Commander Nyx, and the Celestial Livery for your Vanguard ship), an exclusive Wallpaper Pack, AND the original soundtrack by Siddhartha Barnhoorn award-winning composer (also available on iTunes, Bandcamp and Spotify) UPDATE We are aware the title screen currently says "beta" but the current version is not beta but the full game. It is something we will remove in our next patch. Thank you for your patience! About Out There: Oceans of Time As the successor to the award-winning Out There, Oceans of Time blends roguelike, resource management and interactive fiction for a space survival epic where death is one wrong decision away. As Commander Nyx, you’ll explore a vast galaxy that is different every time you play, as you search for the Archon; a cosmic villain set on dominating the civilisations of the galaxy. “Out There: Oceans Of Time might be the next great space RPG.” Gfinity “Overall, the visuals took an overhaul, almost on par with an AAA game.” Turn-based Lovers “I think it’s a real gem that’s worth keeping an eye on. Mi-Clos is clearly passionate about the sci-fi genre, and it shows in Oceans Of Time‘s gorgeous universe.” NME https://store.steampowered.com/app/1145290/Out_There_Oceans_of_Time/ With love from Mi-Clos and Modern Wolf. Launch into the action below 🚀 Following Out There: Oceans of Time on Twitter 🚀 Join the community on Discord 🚀 Subscribe to our newsletter 🚀 Wishlist: Steam pageRead full article on Community Announcements (Extermin'8)AnnouncementsOfficial
Snowtopia Early Access is out now! ❄️
Hi everyone, Goblinz Studio is releasing a new game with developer TeaForTwo. https://cdn.cloudflare.steamstatic.com/steamcommunity/public/images/clans/33025551/48edf8156d3991ac6ab5ecc7957b1243fb295c33.png Snowtopia is a ski resort tycoon in which you build your ideal ski resort. Keep skiers smiling with fresh pistes and fine facilities. Ski, build and chill in the wintry world of Snowtopia where everyone is welcome! https://www.youtube.com/watch?v=hvNzqfBlyAY&feature=youtu.be&ab_channel=GoblinzStudio For two years now, the Snowtopia community has been accompanying us on Discord as well as on different social networks. Thank you for all your feedback since the first version of the game in December 2018, and on all the updates. Your enthusiasm helps us a great bunch! The early access will allow us to be even closer to the players, who will have more than ever a decisive role in the development of our game. 💙 https://store.steampowered.com/app/1124260/Snowtopia_Ski_Resort_Tycoon/ Cheers, TeaForTwo & Goblinz StudioRead full article on Community Announcements (ellieshadow)






