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
The Advisor - Episode 1: Royal Pain
The Advisor Series is a player-driven narrative where your choices & decisions, both in the game, and out of the game, determine how future episodes unfold. Play the role of villain protagonist Magnus the Magician, as he wreaks havoc across the land, one well-placed fireball at a time!
Imagine Earth
Build your own global colonies on distant worlds. Manage energy and resource supplies and produce goods for space trade. Form economic and diplomatic alliances or take over competing corporations. Conduct research to protect your colonists from disasters and avoid a climate crisis.
Total War: ROME REMASTERED
Total War: ROME REMASTERED lets you relive the legacy that defined the award-winning strategy game series. Remastered to 4K with multiple improvements to visuals as well as refinements to gameplay, it’s time to revisit a true classic. Not everyone gets a second chance to conquer the Roman Empire.
Pro Wrestling Sim
Pro Wrestling Sim is a text-based pro-wrestling booking simulator. Control a wrestling promotion, decide your roster, and create storylines, feuds and matches where the winners and losers are in your hands.
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.
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!
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.
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.
The Battle of Polytopia
Welcome to the unique, turn-based strategy game set in the strange, flat world of the Square. Lead one of 16 distinct civilizations to victory by expanding your empire, researching technologies, and ultimately become ruler of the world! Play in single-player or multiplayer mode for up to 16 players.
Imperiums: Greek Wars
Unique combination of turn-based 4X and historical grand strategy with a mythological twist. Explore the ancient world and build a world leading civilization. Survive, expand, conquer... and win!
Cepheus Protocol
Cepheus Protocol is an Open World RTS Military Survival Game. Play as the CERC hunting Patient 0, maintain Quarantine camps, fight dangerous mutations & Rogue Civilian Combatants . There’s nobody else coming, it’s up to you now.
ROMANCE OF THE THREE KINGDOMS XIV
Triumph over the land, take charge of the fate of China! Conquer territories and fly your colors!
Six Ages: Ride Like the Wind
Life between myths. Lead your clan into legend or obscurity. Plan ahead as you read this challenging storybook strategy game, immersing you in the land of old gods and magic also seen in King of Dragon Pass.
Interstellar Space: Genesis
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!
Supremacy: 1914
Take over the control of one of the mighty nations during the times of World War 1 in the biggest WW1 strategy game of all time. Conquer provinces, forge alliances and build up your economy in real-time on persistent maps. Build experimental weapons of World War 1 and become the one true superpower!
China: Mao's legacy
Year 1976, the stormy Cultural revolution has died down, hard times of hongweibing and public critics are coming to an end. Old and sick Mao Zedong will soon leave China to his comrades from CPC. The Cold War is coming into a new phase...
Precipice
A game of diplomacy and war in the atomic age. Safeguard your closest allies and change unfavorable regimes without giving away your long-term ambitions. Every action risks an enemy reprisal, and if nobody backs down from a standoff, we all lose.
Medieval Kingdom Wars
Rewrite medieval history through bloody siege combat in a fusion of RTS and Grand Strategy genres. Rule, build, and serve your King as a minor lord in medieval Europe. Experience siege, field and naval combat with an unseen degree of brutality. Rogue-like progression, epic towns and battles await…
Age of History II
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..
Quarantine Circular
First, do no harm. From the award-winning team behind Thomas Was Alone and Subsurface Circular comes another experimental short, the next mutation in text-based adventure. In the middle of a world-ending pandemic, a group of scientists discover the galaxy has been watching.
Ostalgie: The Berlin Wall
The confrontation between the East and the West is coming to an end, but not between East and West Germany. The old party leaders are still sitting in their offices, not changing anything and waiting for exclamations from Moscow. But their end is close – Gorbachev and Kohl have already decided...
SUPREMACY: WORLD WAR 3
This Long Term Strategy Game lets you take control of the armed forces of your nation. Become responsible for its military expansion, technological research and economic development. Form alliances and wage total war for global dominance on the battlefields of World War 3.
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 94% discount, this game currently holds the #1 spot in the best deals for diplomacy category.
6.0
743
461
-94%
14.99€
0.97€
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