Discounted Diplomacy Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated diplomacy games. For those who prefer not to search, lists of the most played, top deals and best free diplomacy games are available at the bottom of the page.
Filters & Lists
Romance of the Three Kingdoms Maker
"Romance of the Three Kingdoms Maker" celebrates the 30th anniversary of the "Romance of the Three Kingdoms" series. It has been realized through a collaboration between the creators of the "Romance of the Three Kingdoms" series, Koei Tecmo Games, and the creators of the "TSUKURU" series, KADOKAWA.
Renowned Explorers: International Society
In this strategic rogue-like you become a famous expedition leader in the 19th century. You form your own crew with the skills and personality to discover legendary treasures, while exploring randomized locations and stories on every new adventure.
NOBUNAGA'S AMBITION: Sphere of Influence
Become a Daimyo of the Warring States period of Japanese history in NOBUNAGA'S AMBITION, a historical simulation game of conquest and domination. It is the 30th anniversary of this series and this current release, NOBUNAGA'S AMBITION: Sphere of Influence, is the crown of the series.
NOBUNAGA'S AMBITION: Kakushin with Power Up Kit
An extension of the 12th release in the Nobunaga’s Ambition series, Nobunaga’s Ambition: Iron Triangle, has appeared at the Steam Store as Nobunaga’s Ambition: Iron Triangle w/Power-up Kit!
Marble Age
Turn-based historical simulation strategy. Develop the Greek civilization from the small village to the great city-state when it will dominate the world!
NOBUNAGA'S AMBITION: Souzou
The 14th entry of the the historical simulation series "Nobunaga's Ambition." Become a daimyō of the Warring States era, and unite the land! With "the creation of a new age" as the key concept, this title features beautifully recreated castle towns, dynamic battlefield action and dramatic event scenes.
Europa Universalis IV
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
Fallen Enchantress: Legendary Heroes
Fallen Enchantress is 4X strategy game from the makers of Sins of a Solar Empire and Galactic Civilizations. Build a civilization in the magical world of Elemental. Recruit heroes, train armies, build cities, forge alliances and save the world in this rich world where it's never the same game twice.
Total War: SHOGUN 2
Total War: SHOGUN 2 is the perfect mix of real-time and turn-based strategy gaming for newcomers and veterans alike.
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...
Knights of Honor
As King, it is your duty to lead your people in their struggle to raise your kingdom from its humble beginnings to a position of power and prestige. War, diplomacy and a burgeoning economy are the means by which you increase your power and expand your influence.
Most played diplomacy games on Steam
Take a look at the top diplomacy games that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. ROMANCE OF THE THREE KINGDOMS XIV
Triumph over the land, take charge of the fate of China! Conquer territories and fly your colors! ROMANCE OF THE THREE KINGDOMS XIV is a turn-based tactics, wargame and military game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on January 15th 2020 has received 15,111 reviews of which 9,421 were positive and 5,690 were negative resulting in a rating of 6.2 out of 10. The game has hit the top spot as the #1 most played diplomacy game, thanks to its 1,069 peak concurrent players over the last day.
6.2
9,421
5,690
1,069
players
2. Sins of a Solar Empire®: Rebellion
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay. Sins of a Solar Empire®: Rebellion is a management, diplomacy and online co-op game developed by Stardock Entertainment and Ironclad Games Corporation and published by Stardock Entertainment. Released on June 12th 2012 has received 16,015 reviews of which 14,919 were positive and 1,096 were negative resulting in an impressive rating of 9.1 out of 10. While seeing 334 players online at once in the last 24 hours, this game is currently ranked #2 among diplomacy games based on player count.
9.1
14,919
1,096
334
players
3. NOBUNAGA'S AMBITION: Sphere of Influence - Ascension
In the simulation game series "Nobunaga's Ambition", players aim to unify Japan in the troubled times of the Warring States era. In this release we include "Officer Play" for the first time in the series, allowing players to advance from retainer to Castle Lord and then on to Daimyo. NOBUNAGA'S AMBITION: Sphere of Influence - Ascension is a wargame, immersive sim and real time tactics game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on March 23rd 2016 has received 1,046 reviews of which 732 were positive and 314 were negative resulting in a rating of 6.8 out of 10. While seeing 234 players online at once in the last 24 hours, this game is currently ranked #3 among diplomacy games based on player count.
6.8
732
314
234
players
4. Romance of the Three Kingdoms X with Power Up Kit
"Romance of the Three Kingdoms Ⅹ with Power Up Kit" is an expanded version of "Romance of the Three Kingdoms Ⅹ," which was released in 2004 as the 10th game in the series. In this release, the all-officer playable advances. Romance of the Three Kingdoms X with Power Up Kit is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on December 05th 2017 has received 662 reviews of which 546 were positive and 116 were negative resulting in a rating of 7.8 out of 10. The game currently holds the #4 spot among the most played diplomacy games.
7.8
546
116
59
players
5. Romance of the Three Kingdoms XII with Power Up Kit
"Romance of the Three Kingdoms 12 with Power Up Kit" is an expanded version of "Romance of the Three Kingdoms 12," which was released in 2012 as the 12th game in the series. The stage is set. Create the story. Romance of the Three Kingdoms XII with Power Up Kit is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on January 16th 2018 has received 409 reviews of which 303 were positive and 106 were negative resulting in a rating of 7.0 out of 10. The game currently holds the #5 spot among the most played diplomacy games.
7.0
303
106
42
players
6. A Game of Thrones: The Board Game - Digital Edition
A Game of Thrones: The Board Game – Digital Edition is the digital adaptation of the top-selling strategy board game from Fantasy Flight Games. A Game of Thrones: The Board Game - Digital Edition is a strategy, board game and social deduction game developed by Dire Wolf and published by Twin Sails Interactive. Released on October 06th 2020 has received 1,812 reviews of which 1,267 were positive and 545 were negative resulting in a rating of 6.8 out of 10. The game currently holds the #6 spot among the most played diplomacy games.
6.8
1,267
545
37
players
7. Solium Infernum
Take the Infernal Throne in this hellish turn-based grand strategy game. The Prince of Darkness has vanished, leaving Archfiends to conspire: muster your legions while intoning dark sorceries, devilish schemes, and machiavellian plots. Who will be the new ruler of Hell and ascend the Throne? Solium Infernum is a strategy, turn-based strategy and politics game developed and published by League of Geeks. Released on February 22nd 2024 has received 1,486 reviews of which 1,304 were positive and 182 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #7 spot among the most played diplomacy games.
8.4
1,304
182
27
players
8. Realpolitiks
Become the leader of any contemporary country in this streamlined real-time grand strategy game. Use diplomacy, espionage, military and economic power to deal with other nations, while tackling issues such as terrorism, financial crises and medical epidemics, all in an effort to achieve global domination! Realpolitiks is a strategy, diplomacy and political sim game developed by Jujubee S.A. and published by Fulqrum Publishing. Released on February 16th 2017 has received 1,204 reviews of which 743 were positive and 461 were negative resulting in a rating of 6.0 out of 10. The game currently holds the #8 spot among the most played diplomacy games.
6.0
743
461
9
players
9. Power & Revolution 2020 Edition
The new version of Geopolitical Simulator 4, the ultrarealistic simulator of today's world where you play as the head of state or as the opposition! Stop the spread of the Covid-19 pandemic and restart the economy, participate in the US elections or engage in lightning wars with new 2020 scenarios. Power & Revolution 2020 Edition is a simulation, strategy and diplomacy game developed and published by Eversim. Released on September 17th 2020 has received 840 reviews of which 524 were positive and 316 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #9 spot among the most played diplomacy games.
6.1
524
316
8
players
10. Romance of the Three Kingdoms Maker
"Romance of the Three Kingdoms Maker" celebrates the 30th anniversary of the "Romance of the Three Kingdoms" series. It has been realized through a collaboration between the creators of the "Romance of the Three Kingdoms" series, Koei Tecmo Games, and the creators of the "TSUKURU" series, KADOKAWA. Romance of the Three Kingdoms Maker is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on December 09th 2015 has received 326 reviews of which 217 were positive and 109 were negative resulting in a rating of 6.4 out of 10. The game currently holds the #10 spot among the most played diplomacy games.
6.4
217
109
5
players
Best deals on diplomacy games on Steam
Discover fantastic savings with the best discounts on a variety of diplomacy games available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted diplomacy games.
1. Realpolitiks
Become the leader of any contemporary country in this streamlined real-time grand strategy game. Use diplomacy, espionage, military and economic power to deal with other nations, while tackling issues such as terrorism, financial crises and medical epidemics, all in an effort to achieve global domination! Realpolitiks is a strategy, diplomacy and political sim game developed by Jujubee S.A. and published by Fulqrum Publishing. Released on February 16th 2017 has received 1,204 reviews of which 743 were positive and 461 were negative resulting in a rating of 6.0 out of 10. Featuring a massive 91% discount, this game currently holds the #1 spot in the best deals for diplomacy category.
6.0
743
461
-91%
14.99€
1.49€
2. A Game of Thrones: The Board Game - Digital Edition
A Game of Thrones: The Board Game – Digital Edition is the digital adaptation of the top-selling strategy board game from Fantasy Flight Games. A Game of Thrones: The Board Game - Digital Edition is a strategy, board game and social deduction game developed by Dire Wolf and published by Twin Sails Interactive. Released on October 06th 2020 has received 1,812 reviews of which 1,267 were positive and 545 were negative resulting in a rating of 6.8 out of 10. Thanks to its incredible 85% discount, this game is now the #2 best deal in diplomacy games.
6.8
1,267
545
-85%
19.99€
3.16€
3. Romance of the Three Kingdoms X with Power Up Kit
"Romance of the Three Kingdoms Ⅹ with Power Up Kit" is an expanded version of "Romance of the Three Kingdoms Ⅹ," which was released in 2004 as the 10th game in the series. In this release, the all-officer playable advances. Romance of the Three Kingdoms X with Power Up Kit is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on December 05th 2017 has received 662 reviews of which 546 were positive and 116 were negative resulting in a rating of 7.8 out of 10. Thanks to its 50% discount, this game is now the #3 best deal in diplomacy games.
7.8
546
116
-50%
27.99€
13.99€
4. Romance of the Three Kingdoms XII with Power Up Kit
"Romance of the Three Kingdoms 12 with Power Up Kit" is an expanded version of "Romance of the Three Kingdoms 12," which was released in 2012 as the 12th game in the series. The stage is set. Create the story. Romance of the Three Kingdoms XII with Power Up Kit is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on January 16th 2018 has received 409 reviews of which 303 were positive and 106 were negative resulting in a rating of 7.0 out of 10. Currently offered at a 50% discount, this title has earned the #4 position in the best deals for diplomacy games.
7.0
303
106
-50%
36.99€
18.49€
5. NOBUNAGA'S AMBITION: Sphere of Influence - Ascension
In the simulation game series "Nobunaga's Ambition", players aim to unify Japan in the troubled times of the Warring States era. In this release we include "Officer Play" for the first time in the series, allowing players to advance from retainer to Castle Lord and then on to Daimyo. NOBUNAGA'S AMBITION: Sphere of Influence - Ascension is a wargame, immersive sim and real time tactics game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on March 23rd 2016 has received 1,046 reviews of which 732 were positive and 314 were negative resulting in a rating of 6.8 out of 10. Currently offered at a 50% discount, this title has earned the #5 position in the best deals for diplomacy games.
6.8
732
314
-50%
59.99€
29.99€
6. Romance of the Three Kingdoms Maker
"Romance of the Three Kingdoms Maker" celebrates the 30th anniversary of the "Romance of the Three Kingdoms" series. It has been realized through a collaboration between the creators of the "Romance of the Three Kingdoms" series, Koei Tecmo Games, and the creators of the "TSUKURU" series, KADOKAWA. Romance of the Three Kingdoms Maker is a turn-based tactics, wargame and immersive sim game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on December 09th 2015 has received 326 reviews of which 217 were positive and 109 were negative resulting in a rating of 6.4 out of 10. Currently offered at a 50% discount, this title has earned the #6 position in the best deals for diplomacy games.
6.4
217
109
-50%
9.99€
4.99€
7. ROMANCE OF THE THREE KINGDOMS XIV
Triumph over the land, take charge of the fate of China! Conquer territories and fly your colors! ROMANCE OF THE THREE KINGDOMS XIV is a turn-based tactics, wargame and military game developed and published by KOEI TECMO GAMES CO. and LTD.. Released on January 15th 2020 has received 15,111 reviews of which 9,421 were positive and 5,690 were negative resulting in a rating of 6.2 out of 10. Currently offered at a 40% discount, this title has earned the #7 position in the best deals for diplomacy games.
6.2
9,421
5,690
-40%
59.99€
35.99€
Free diplomacy games on Steam
Check out this fantastic list of free-to-play diplomacy games you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play diplomacy games.
1. The Life and Suffering of Sir Brante — Chapter 1&2
A narrative-driven hardcore RPG set in a gritty world where the gods are real. Set out on a challenging lifetime journey, where every choice you make has a price to pay and consequence to it. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide! The Life and Suffering of Sir Brante — Chapter 1&2 is a interactive fiction, choose your own adventure and diplomacy game developed by Sever and published by 101XP. Released on December 01st 2020 has received 2,027 reviews of which 1,954 were positive and 73 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #1 spot among the most played free diplomacy games on Steam.
9.2
1,954
73