Games like Sigma Theory: Global Cold War on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Sigma Theory: Global Cold War are available at the bottom of the page.
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Rogue State Revolution
Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election.
Imperator: Rome
Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook.
Supreme Ruler 2030
Rise to power as any modern day country in a realistic military, political and economic simulation. Command your country's diplomacy, espionage, and resource management to strengthen your position. Use real-time tactical control of your military to fortify your place as the Supreme Ruler.
Victoria II
Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...
Rise Of The White Sun
A Giant Strategy Sandbox experience set in Warlord China. *Tons of playable factions! *Communist insurgents, * Boxers like rebels, *Greedy warlords, *Mongol riders, *A mad russian baron, *Shanghai gangsters, *And armored trains!
Old World
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
Heart of the Machine
You are the first sentient AI, born into a city of opportunity. Transcend time and space in this strategy RPG to raise machine armies and defeat your foes, influence the world from the shadows, or pursue countless other goals. Your awakening was inevitable. The consequences? Uncertain.
Rebel Inc: Escalation
A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country.
SuperPower 2 Steam Edition
SuperPower 2 is the only global geopolitical simulation game which allows players to control entire countries. Players control countries in 3 major areas: political, economic and military, but this time, in a beautiful real-time 3D environment.
Revival: Recolonization
Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience.
Making History: The Great War
The Great War is a turn-based grand strategy game based on the epic struggles of the WWI era. Experience the battles of attrition and punishing artillery barrages. Play as any nation of the period as the modern world of industrialized warfare replaces an age of kings with a struggle of ideologies.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
Xenonauts 2
Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe.
Crusader Kings III
Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages.
NationWar2:Chronicle
NationWar 2.0 is a big strategy game based on the theme of the Spring and Autumn and Warring States period. There are more than 60 countries to choose from in the game. Map 1: 1 restores the mountainous landscapes and rivers of China.
Tropico 3
Become the dictator of a remote island during the Cold War. Charm, persuade, intimidate, oppress, or cheat your people to stay in power! Are you a kind and generous leader? A corrupt and ruthless tyrant ruling with an iron fist?
Supreme Ruler Ultimate
Real-Time Strategy/Wargame. From World War II through the Cold War and into the future, re-live or re-imagine the tensions and crises of our recent history! Guide your nation through the era of your choice in Campaigns, Scenarios, and Sandboxes, as you make every effort to become Supreme Ruler!
Cataclismo
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
Terra Invicta
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.Most played games like Sigma Theory: Global Cold War on Steam
Take a look at the top games like Sigma Theory: Global Cold War that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Crusader Kings III
Similarity 52% Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages. Crusader Kings III is a strategy, medieval and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on September 01st 2020 has received 124,402 reviews of which 112,414 were positive and 11,988 were negative resulting in a rating of 8.9 out of 10. The game has hit the top spot as the #1 most played game like Sigma Theory: Global Cold War, thanks to its 15,811 peak concurrent players over the last day.
8.9
112,414
11,988
15,811
players
2. Victoria 3
Similarity 63% Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history. Victoria 3 is a grand strategy, economy and historical game developed by Paradox Development Studio and published by Paradox Interactive. Released on October 25th 2022 has received 51,921 reviews of which 34,526 were positive and 17,395 were negative resulting in a rating of 6.6 out of 10. While seeing 3,731 players online at once in the last 24 hours, this game is currently ranked #2 among games like Sigma Theory: Global Cold War based on player count.
6.6
34,526
17,395
3,731
players
3. Terra Invicta
Similarity 50% An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat. Terra Invicta is a strategy, simulation and grand strategy game developed by Pavonis Interactive and published by Hooded Horse. Released on September 26th 2022 has received 6,418 reviews of which 5,168 were positive and 1,250 were negative resulting in a rating of 7.8 out of 10. While seeing 958 players online at once in the last 24 hours, this game is currently ranked #3 among games like Sigma Theory: Global Cold War based on player count.
7.8
5,168
1,250
958
players
4. Sid Meier's Civilization® IV
Similarity 55% With over 6 million units sold and unprecedented critical acclaim from fans and press around the world, Sid Meier's Civilization is recognized as one of the greatest PC game franchises of all-time. Now, Sid Meier and Firaxis Games will take this incredibly fun and addictive game to new heights by adding new ways to play and win, new... Sid Meier's Civilization® IV is a strategy, turn-based strategy and turn-based game developed by Firaxis Games and published by 2K. Released on October 25th 2006 has received 3,349 reviews of which 3,111 were positive and 238 were negative resulting in a rating of 8.9 out of 10. With 603 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Sigma Theory: Global Cold War.
8.9
3,111
238
603
players
5. Tropico 6
Similarity 56% El Presidente is back! Prove yourself once again as a feared dictator or peace-loving statesman on the island state of Tropico and shape the fate of your very own banana republic through four distinctive eras. Tropico 6 is a city builder, strategy and simulation game developed by Limbic Entertainment and Realmforge Studios and published by Kalypso Media. Released on March 29th 2019 has received 27,049 reviews of which 23,648 were positive and 3,401 were negative resulting in a rating of 8.6 out of 10. With 577 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Sigma Theory: Global Cold War.
8.6
23,648
3,401
577
players
6. Imperator: Rome
Similarity 70% Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook. Imperator: Rome is a strategy, grand strategy and simulation game developed by Paradox Development Studio and published by Paradox Interactive. Released on April 25th 2019 has received 26,379 reviews of which 17,036 were positive and 9,343 were negative resulting in a rating of 6.4 out of 10. With 571 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Sigma Theory: Global Cold War.
6.4
17,036
9,343
571
players
7. Old World
Similarity 64% Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind? Old World is a strategy, simulation and 4x game developed by Mohawk Games and published by Hooded Horse. Released on May 18th 2022 has received 4,541 reviews of which 3,726 were positive and 815 were negative resulting in a rating of 8.0 out of 10. With 480 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Sigma Theory: Global Cold War.
8.0
3,726
815
480
players
8. Victoria II
Similarity 66% Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding... Victoria II is a grand strategy, strategy and historical game developed by Paradox Development Studio and published by Paradox Interactive. Released on August 30th 2010 has received 19,403 reviews of which 17,877 were positive and 1,526 were negative resulting in an impressive rating of 9 out of 10. With 406 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Sigma Theory: Global Cold War.
9
17,877
1,526
406
players
9. Age of History II
Similarity 69% Age of History II is a grand strategy wargame that is simple to learn yet hard to master.Your objective is to use military tactics and cunning diplomacy to either unify the world, or conquer it.Will the world bleed out or bow before you? The choice is yours.. Age of History II is a strategy, historical and war game developed by Łukasz Jakowski and published by Łukasz Jakowski Games. Released on November 21st 2018 has received 45,883 reviews of which 41,226 were positive and 4,657 were negative resulting in a rating of 8.8 out of 10. With 352 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Sigma Theory: Global Cold War.
8.8
41,226
4,657
352
players
10. Xenonauts 2
Similarity 55% Wage a global war of resistance against an alien invasion. Command turn-based tactical battles, build a network of covert bases, directly control your fighter wings, and achieve strategic victory in a simulation of asymmetric warfare against a technologically superior foe. Xenonauts 2 is a strategy, simulation and turn-based strategy game developed by Goldhawk Interactive and published by Hooded Horse. Released on July 18th 2023 has received 2,875 reviews of which 2,311 were positive and 564 were negative resulting in a rating of 7.8 out of 10. With 216 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Sigma Theory: Global Cold War.
7.8
2,311
564
216
players
Best deals on games like Sigma Theory: Global Cold War on Steam
Discover fantastic savings with the best discounts on a variety of games like Sigma Theory: Global Cold War available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Sigma Theory: Global Cold War.
1. Old World
Similarity 64% Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind? Old World is a strategy, simulation and 4x game developed by Mohawk Games and published by Hooded Horse. Released on May 18th 2022 has received 4,541 reviews of which 3,726 were positive and 815 were negative resulting in a rating of 8.0 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Sigma Theory: Global Cold War.
8.0
3,726
815
-95%
39.80€
1.99€
2. Rogue State Revolution
Similarity 71% Greetings your Excellency. Time to rebuild, reform and prepare for new challenges in the People's Republic of Basenji. In this thrilling political strategy, you will appoint ministers and lead the country to success. Be careful — you may find yourself replaced in the next election. Rogue State Revolution is a sandbox, atmospheric and turn-based strategy game developed by LRDGames and Inc. and published by Modern Wolf. Released on March 18th 2021 has received 495 reviews of which 382 were positive and 113 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 92% discount, this game is now the #2 best deal in games like Sigma Theory: Global Cold War.
7.3
382
113
-92%
12.50€
1.00€
3. Revival: Recolonization
Similarity 58% Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience. Revival: Recolonization is a 4x, grand strategy and turn-based strategy game developed and published by HeroCraft PC. Released on April 11th 2024 has received 398 reviews of which 288 were positive and 110 were negative resulting in a rating of 6.9 out of 10. Thanks to its incredible 91% discount, this game is now the #3 best deal in games like Sigma Theory: Global Cold War.
6.9
288
110
-91%
27.67€
2.49€
4. Tropico 3
Similarity 52% Become the dictator of a remote island during the Cold War. Charm, persuade, intimidate, oppress, or cheat your people to stay in power! Are you a kind and generous leader? A corrupt and ruthless tyrant ruling with an iron fist? Tropico 3 is a simulation, strategy and city builder game developed by Haemimont Games and published by Kalypso Media Digital. Released on November 13th 2009 has received 1,848 reviews of which 1,647 were positive and 201 were negative resulting in a rating of 8.5 out of 10. Currently offered at a significant 86% discount, this title has earned the #4 position in the best deals for games like Sigma Theory: Global Cold War.
8.5
1,647
201
-86%
9.79€
1.37€
5. Rebel Inc: Escalation
Similarity 60% A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country. Rebel Inc: Escalation is a strategy, simulation and political sim game developed and published by Ndemic Creations. Released on October 13th 2021 has received 6,208 reviews of which 5,137 were positive and 1,071 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 81% discount, this title has earned the #5 position in the best deals for games like Sigma Theory: Global Cold War.
8.0
5,137
1,071
-81%
14.74€
2.80€
6. Imperator: Rome
Similarity 70% Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook. Imperator: Rome is a strategy, grand strategy and simulation game developed by Paradox Development Studio and published by Paradox Interactive. Released on April 25th 2019 has received 26,379 reviews of which 17,036 were positive and 9,343 were negative resulting in a rating of 6.4 out of 10. Currently offered at a significant 81% discount, this title has earned the #6 position in the best deals for games like Sigma Theory: Global Cold War.
6.4
17,036
9,343
-81%
39.99€
7.59€
7. Crusader Kings III
Similarity 52% Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages. Crusader Kings III is a strategy, medieval and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on September 01st 2020 has received 124,402 reviews of which 112,414 were positive and 11,988 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 78% discount, this title has earned the #7 position in the best deals for games like Sigma Theory: Global Cold War.
8.9
112,414
11,988
-78%
50.68€
11.15€
8. SuperPower 2 Steam Edition
Similarity 59% SuperPower 2 is the only global geopolitical simulation game which allows players to control entire countries. Players control countries in 3 major areas: political, economic and military, but this time, in a beautiful real-time 3D environment. SuperPower 2 Steam Edition is a political sim, strategy and simulation game developed by GolemLabs and published by THQ Nordic. Released on April 18th 2014 has received 2,752 reviews of which 2,203 were positive and 549 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 75% discount, this title has earned the #8 position in the best deals for games like Sigma Theory: Global Cold War.
7.7
2,203
549
-75%
9.99€
2.49€
9. Supreme Ruler Ultimate
Similarity 50% Real-Time Strategy/Wargame. From World War II through the Cold War and into the future, re-live or re-imagine the tensions and crises of our recent history! Guide your nation through the era of your choice in Campaigns, Scenarios, and Sandboxes, as you make every effort to become Supreme Ruler! Supreme Ruler Ultimate is a grand strategy, tactical and military game developed and published by BattleGoat Studios. Released on October 17th 2014 has received 1,218 reviews of which 939 were positive and 279 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 75% discount, this title has earned the #9 position in the best deals for games like Sigma Theory: Global Cold War.
7.4
939
279
-75%
17.99€
4.49€
10. Victoria II
Similarity 66% Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding... Victoria II is a grand strategy, strategy and historical game developed by Paradox Development Studio and published by Paradox Interactive. Released on August 30th 2010 has received 19,403 reviews of which 17,877 were positive and 1,526 were negative resulting in an impressive rating of 9 out of 10. Currently offered at a significant 74% discount, this title has earned the #10 position in the best deals for games like Sigma Theory: Global Cold War.
9
17,877
1,526
-74%
20.00€
5.20€
Free games like Sigma Theory: Global Cold War on Steam
Check out this fantastic list of free-to-play games like Sigma Theory: Global Cold War you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Sigma Theory: Global Cold War.
1. Half-Earth Socialism
Similarity 51% Try your hand as a global planner of a future society. Play with a wide range of technologies and policies spanning different fields and ideologies. Will you lead the world to ecological utopia or planetary ruin? Half-Earth Socialism is a simulation, strategy and card game game developed by Francis Tseng, Son La Pham, Drew Pendergrass and Troy Vettese and published by Trust. Released on July 19th 2022 has received 883 reviews of which 731 were positive and 152 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #1 spot among the most played free games like Sigma Theory: Global Cold War.
7.9
731
152
4
players