Best 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
KAISERPUNK
Build a city to rule the world in Kaiserpunk, a grand city builder blending production-focused city building with the world conquest of strategy games in an alternate 20th century world. Manage your city, grow industries, build a military, and defeat rivals to become the greatest empire.
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.
Royal Quest Online
Fantasy comes alive in this vast yet cozy free-to-play MMORPG! Choose between 4 classes and 8 subclasses, explore hundreds of locations, thousands of quests, dive into varied PvE and PvP modes, enter the unique vibrant world, and trade with other players. Play, explore, fight and be victorious!
Age of History 3
Grand strategy wargame where the destiny of Civilizations rests in your hands - will they stand united under your leadership or fall divided in conflict? Journey through the entire saga of human civilization, from its earliest days to the futuristic era, crafting your legacy age by age.
Technotopia
Welcome to Technotopia, a city-builder card game. Take on the role of an AI designed to build a perfect city. Build districts, meet the needs of diverse communities and maintain the delicate balance between factions vying for control over you!
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.
Ara: History Untold
Build a nation and lead your people throughout history to the pinnacles of human achievement as you explore new lands, develop arts and culture, conduct diplomacy, and go head-to-head with your rivals to prove you are the greatest ruler ever known. It's Your World Now.
Republic of Pirates
Establish and grow a pirate utopia during the Golden Age of Piracy. Create a resource-based economy, engage in real-time naval combat, and navigate diplomatic relationships with rival powers. Explore the far reaches of the Caribbean in search of the ultimate fortune and glory…
Fabledom
Set in a wholesome fairytale world, Fabledom is a laid-back City builder. Enjoy the growth of your settlement, interact with your neighbors and defend your kingdom from magical creatures. All to find true love and live happily ever after!
Great Houses of Calderia
Great Houses of Calderia is a Feudal Grand Strategy game focusing on family dynamics & stories. Use your family strengths to compete against rivals to rise in the ranks of Calderia - produce, trade, scheme, bribe, and battle to build your legacy of power!
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.
Reign of Guilds
Reign of Guilds is an indie old-school MMORPG where everyone influences other players and the game world. The game doesn't hold your hand, nor does it impose casual restrictions on players' actions. Here, everyone can find their path to power.
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?
Arms Trade Tycoon: Tanks
Arms Trade Tycoon: Tanks is a unique combination of tank design and tycoon game. It puts you in charge of an arms trading company specialized in tanks from WWI to the modern era. Research, design, sell and follow your tanks in battle to make your own history!
The Witch's Cauldron
The Witch's Cauldron is a narrative roguelike game about being a medieval witch. Grab your cauldron and get brewing. Love, curses, laughter, wisdom for sale! Do what thou wilt shall be the whole of the Law. At least before the inquisitors come around.
World Warfare & Economics
Take control of any nation and shape its future. Manage resources, trade, and taxes, engage in real-time warfare, navigate global diplomacy, and react to dynamic world events. Build a thriving economy, forge alliances, and command armies in a constantly evolving world!
Microcivilization
Incremental clicker strategy, where you expand, construct, research, fight, collect heroes and make choices between good and evil. Ascend through difficulty tiers by playing through challenge campaign going back and forth through history. Mammoths included.
Galactic Civilizations IV
Take command of a civilization that has just achieved faster-than-light travel in Galactic Civilizations IV, the newest entry in the award-winning space 4X strategy game series. Explore the galaxy, colonize worlds, shape cultures, make alliances, fight wars and pioneer new technologies.
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!
Dune: Spice Wars
A 4X real-time strategy game from the developers of the critically acclaimed Northgard. Set in Frank Herbert’s groundbreaking Dune universe, you must lead your faction and battle for control and dominance over the harsh desert planet of Arrakis.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 April 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 15,005 reviews of which 9,336 were positive and 5,669 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 3,043 peak concurrent players over the last day.
6.2
9,336
5,669
3,043
players
2. 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 1,039 reviews of which 725 were positive and 314 were negative resulting in a rating of 6.7 out of 10. While seeing 394 players online at once in the last 24 hours, this game is currently ranked #2 among diplomacy games based on player count.
6.7
725
314
394
players
3. 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 15,971 reviews of which 14,879 were positive and 1,092 were negative resulting in an impressive rating of 9.1 out of 10. While seeing 363 players online at once in the last 24 hours, this game is currently ranked #3 among diplomacy games based on player count.
9.1
14,879
1,092
363
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 647 reviews of which 534 were positive and 113 were negative resulting in a rating of 7.8 out of 10. With 123 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played diplomacy games.
7.8
534
113
123
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 399 reviews of which 295 were positive and 104 were negative resulting in a rating of 7 out of 10. With 112 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played diplomacy games.
7
295
104
112
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 1,792 reviews of which 1,257 were positive and 535 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
1,257
535
28
players
7. 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 1,197 reviews of which 740 were positive and 457 were negative resulting in a rating of 6.0 out of 10. The game currently holds the #7 spot among the most played diplomacy games.
6.0
740
457
12
players
8. 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 323 reviews of which 215 were positive and 108 were negative resulting in a rating of 6.4 out of 10. The game currently holds the #8 spot among the most played diplomacy games.
6.4
215
108
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 839 reviews of which 523 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
523
316
7
players
10. 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 2,029 reviews of which 1,957 were positive and 72 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #10 spot among the most played diplomacy games.
9.2
1,957
72
1
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 April 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 1,197 reviews of which 740 were positive and 457 were negative resulting in a rating of 6.0 out of 10. Featuring a massive 93% discount, this game currently holds the #1 spot in the best deals for diplomacy category.
6.0
740
457
-93%
15.29€
1.07€
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 1,792 reviews of which 1,257 were positive and 535 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
1,257
535
-85%
20.33€
3.05€
3. 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 15,005 reviews of which 9,336 were positive and 5,669 were negative resulting in a rating of 6.2 out of 10. Thanks to its 37% discount, this game is now the #3 best deal in diplomacy games.
6.2
9,336
5,669
-37%
59.95€
37.77€
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 April 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 2,029 reviews of which 1,957 were positive and 72 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
1,957
72
1
players