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Game data by IGDB. Every price is a real observation, shown with the time we saw it.

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  4. ā€ŗSigma Theory: Global Cold War
Sigma Theory: Global Cold War

Sigma Theory: Global Cold War

Release dateApr 18, 2019
Ratings & reviews
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.
AdventureIndieActionSingle playerRole-playing (RPG)

Media & gameplay showcase

Trailer
1 / 8

Best Price Right Now

$4.49
GOG
Purchase
Observed 5 hours ago

Historical Low

$4.49
GOG
Observed Aug 18, 2026

Edition / bundle

Available at 1 store Ā· 5 editions / bundles

Settings

Compare Prices

Sigma Theory: Global Cold War - Deluxe Edition

Store Link
GOG
$5.45
$27.17
Observed 5 hours ago
-80%
Purchase
  • GOG
    $5.45
    $27.17
    Observed 5 hours ago
    -80%
    Purchase

Sigma Theory: Global Cold War

Store Link
GOG
$4.49
$17.99
Observed 5 hours ago
-75%
Purchase
  • GOG
    $4.49
    $17.99
    Observed 5 hours ago
    -75%
    Purchase

Sigma Theory

Store Link
Steam
$4.49
$17.99
Observed 17 hours ago
-75%Sale ends Oct 8, 2026
Purchase
  • Steam
    $4.49
    $17.99
    Observed 17 hours ago
    -75%Sale ends Oct 8, 2026
    Purchase

Mi-Clos Studio Pack

Store Link
Steam
$10.31
$39.07
Observed 17 hours ago
-74%Sale ends Oct 8, 2026
Purchase
  • Steam
    $10.31
    $39.07
    Observed 17 hours ago
    -74%Sale ends Oct 8, 2026
    Purchase

Sigma Theory - Deluxe Edition

Store Link
Steam
$8.05
$27.16
Observed 17 hours ago
-70%Sale ends Oct 8, 2026
Purchase
  • Steam
    $8.05
    $27.16
    Observed 17 hours ago
    -70%Sale ends Oct 8, 2026
    Purchase

Price History

ObservedGOG Ā· USD
47 days ago$4.49
46 days ago$4.49
41 days ago$17.99
40 days ago$4.49
19 days ago$17.99
4 days ago$4.49

About Sigma Theory: Global Cold War

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.

Downloadable Content

4 catalog add-ons
4 DLCs
  • Sigma Theory: Global Cold War - Original Soundtrack
    Sigma Theory: Global Cold War - Original SoundtrackAdd-on
    2019
    -60%$7.99
    $3.19
  • Nigeria - Sigma Theory
    Nigeria - Sigma TheoryAdd-on
    2020
    -50%$2.99
    $1.49
  • Sigma Theory: Nigeria - Additional Nation
    Sigma Theory: Nigeria - Additional NationAdd-on
    2020
    -50%$2.99
    $1.49
  • Sigma Theory: Global Cold War - Brazil
    Sigma Theory: Global Cold War - BrazilAdd-on
    2020
    -50%$2.99
    $1.49

Game details

Release date
Apr 18, 2019
Developer
Mi-Clos Studio
Publisher
Mi-Clos Studio
Platforms
Android, Linux, Mac, Nintendo Switch, PC (Microsoft Windows), iOS
Genres
Adventure, Indie, Role-playing (RPG), Simulator, Strategy, Turn-based strategy (TBS)
Themes
Action, Science fiction
Game modes
Single player
Player perspective
N/A
Languages
LanguageAudioInterfaceSubtitles
Chinese (Simplified)
Chinese (Traditional)
English
French
German
Russian
Age ratings
PEGI: 7, ESRB: E10+
Steam Deck Compatibility
Unrated

System requirements

Minimum
OS
N/A
CPU
N/A
GPU
N/A
Memory
N/A
Storage
N/A
Recommended
OS
N/A
CPU
N/A
GPU
N/A
Memory
N/A
Storage
N/A

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