Games like Diplomacy is Not an Option on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Diplomacy is Not an Option are available at the bottom of the page.
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United Penguin Kingdom
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
From Glory To Goo
From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.
Kingdoms and Castles
Kingdoms and Castles is a city-building simulation game about growing a kingdom from a tiny hamlet to a sprawling city and imposing castle. Make trade agreements, alliance, and war with neighboring AI controlled kingdoms. Each villager and resource is individually simulated.
Patron
Patron is a survival city builder with a unique social dynamics system. Gather and produce resources, build your fledgling village into a prosperous city and navigate the intricate social tensions before they reach boiling point.
Norland
Lead your noble family in this medieval colony sim, facing off against class conflict, religious struggle, and political treachery. Tend to your people’s needs, uncover the lost knowledge of a fallen empire, and engage in nefarious plots against your enemies.
Foundation
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
First Feudal
Become a real medieval feudal lord: start with a small village and build it up into an enormous impenetrable castle. You will have to repel enemy raids: hide behind thick walls, lure your enemies into strategically placed traps, and even lead your loyal peasants into battle.
Banished
In this city-building strategy game, you control a group of exiled travelers who decide to restart their lives in a new land. They have only the clothes on their backs and a cart filled with supplies from their homeland. The townspeople of Banished are your primary resource.
They Are Billions
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
Founders' Fortune
A fantasy village builder focusing on creative building, colonist psychology and base defense. Handle resources, farming, production, tools, diplomacy, families, trading, defense, and research, as well as the wishes, expectations, thoughts, and equipment of every villager.
Planetbase
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
Colony Survival
Colony Survival is a unique first-person strategy game developed by a two-man team. Build your own colony in a voxel world. Command guards, farmers, miners and other colonists. Defend your colony against the horde of monsters that attacks every night!
Settlement Survival
In this city-building game, you will lead a group of survivors in their search for a new home. Manipulate the landscape, manage limited supplies, plant crops, hunt wildlife, gather resources, and develop trade routes to build a bustling and unique town.
Going Medieval
Build and manage your own castle settlement in a land reclaimed by wilderness. With detailed management, survival strategy, and a moddable sandbox world, Going Medieval challenges you to build the mightiest colony this side of the apocalypse.
Stronghold Crusader HD (2012)
The highly anticipated sequel to the best-selling Stronghold, Stronghold Crusader HD throws you into historic battles and castle sieges from the Crusades with fiendish AI opponents, new units, 4 historical campaigns and over 100 unique skirmish missions.
Cliff Empire
After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!
Settlements Rising
Settlements Rising is a medieval city building and colony management game. It offers a lively colony experience with simulated villagers, dozens of professions and resources, natural disasters, and raids, while providing full control over the colony through trade, production chains and datas.
Ratopia
Ratopia is a new game that has combined elements of both strategic survival and city building. With plenty of content available, and more planned, enjoy a vast world to adventure and populate with citizens! Build your own economical system to sustain your ideal city of Ratopia.
Clanfolk
Clanfolk is a colony sim set in the Scottish Highlands. Harness your environment to survive - fish, gather, hunt, and farm as you prepare for the winter. Build an inn, trade with other clans, have children and marry them off - live life and prosper across the generations.
Against the Storm
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
Cartel Tycoon
Cartel Tycoon is a survival business sim inspired by the ‘80s and '90s narco trade. Expand and conquer, fight off rival thugs and evade the authorities. Earn people's loyalty and strive to overcome the doomed fate of a power-hungry drug lord.
The Wandering Village
The Wandering Village is a city-building strategy game on the back of a giant, wandering creature. Build your settlement and form a symbiotic relationship with the colossus. Will you survive together in this hostile, yet beautiful post-apocalyptic world, contaminated by poisonous plants?
Ruinarch
Ruinarch is an evil god simulator and sandbox game where you mess with people’s lives for hilarious results! Make them vampires, werewolves or bard haters and cackle as the drama unfolds. Once you’re done, unleash a malicious buffet of spells and custom plagues to wipe them out and start anew!Most played games like Diplomacy is Not an Option on Steam
Take a look at the top games like Diplomacy is Not an Option that are currently attracting the largest player bases on the Steam platform, as of April 15th 2025.
1. RimWorld
Similarity 61% A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more. RimWorld is a colony sim, base-building and survival game developed and published by Ludeon Studios. Released on October 17th 2018 has received 207,285 reviews of which 203,071 were positive and 4,214 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like Diplomacy is Not an Option, thanks to its 35,684 peak concurrent players over the last day.
9.7
203,071
4,214
35,684
players
2. Age of Empires IV: Anniversary Edition
Similarity 59% Celebrating its first year of delighting millions of global players, the award-winning and best-selling strategy franchise continues with Age of Empires IV: Anniversary Edition, putting you at the center of even more epic historical battles that shaped the world. Age of Empires IV: Anniversary Edition is a strategy, rts and base-building game developed by Relic Entertainment, Forgotten Empires, Climax Studios and World's Edge and published by Xbox Game Studios. Released on October 28th 2021 has received 78,584 reviews of which 67,670 were positive and 10,914 were negative resulting in a rating of 8.5 out of 10. While seeing 24,322 players online at once in the last 24 hours, this game is currently ranked #2 among games like Diplomacy is Not an Option based on player count.
8.5
67,670
10,914
24,322
players
3. Factorio
Similarity 52% Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you. Factorio is a automation, base-building and resource management game developed and published by Wube Software LTD.. Released on August 14th 2020 has received 212,622 reviews of which 206,226 were positive and 6,396 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 23,861 players online at once in the last 24 hours, this game is currently ranked #3 among games like Diplomacy is Not an Option based on player count.
9.6
206,226
6,396
23,861
players
4. Oxygen Not Included
Similarity 64% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,145 reviews of which 123,019 were positive and 4,126 were negative resulting in an impressive rating of 9.5 out of 10. With 13,414 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Diplomacy is Not an Option.
9.5
123,019
4,126
13,414
players
5. Dyson Sphere Program
Similarity 59% Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire. Dyson Sphere Program is a automation, space and base-building game developed by Youthcat Studio and published by Gamera Games. Released on January 20th 2021 has received 84,564 reviews of which 82,585 were positive and 1,979 were negative resulting in an impressive rating of 9.6 out of 10. With 5,796 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Diplomacy is Not an Option.
9.6
82,585
1,979
5,796
players
6. Kenshi
Similarity 61% A free-roaming squad based RPG. Focusing on open-ended sandbox gameplay features rather than a linear story. Be a trader, a thief, a rebel, a warlord, an adventurer, a farmer, a slave, or just food for the cannibals. Train your men up from puny victims to master warriors. Kenshi is a open world, sandbox and rpg game developed and published by Lo-Fi Games. Released on December 06th 2018 has received 95,436 reviews of which 91,127 were positive and 4,309 were negative resulting in an impressive rating of 9.4 out of 10. With 5,411 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Diplomacy is Not an Option.
9.4
91,127
4,309
5,411
players
7. Timberborn
Similarity 53% Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood. Timberborn is a city builder, voxel and colony sim game developed and published by Mechanistry. Released on September 15th 2021 has received 30,293 reviews of which 28,922 were positive and 1,371 were negative resulting in an impressive rating of 9.3 out of 10. With 4,780 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Diplomacy is Not an Option.
9.3
28,922
1,371
4,780
players
8. Kingdom Two Crowns
Similarity 57% Gather coins, build defenses and reclaim your fallen Kingdom. Explore and uncover secrets, unlock new technologies and protect your crown versus waves of Greed monsters that come at night. Kingdom is a solo or co-op micro-strategy and tower defense game set in an atmospheric pixel world. Kingdom Two Crowns is a tower defense, minimalist and city builder game developed by Stumpy🐙Squid, Fury Studios and Coatsink and published by Raw Fury. Released on December 11th 2018 has received 7,063 reviews of which 6,244 were positive and 819 were negative resulting in a rating of 8.6 out of 10. With 4,099 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Diplomacy is Not an Option.
8.6
6,244
819
4,099
players
9. Manor Lords
Similarity 67% Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall. Manor Lords is a strategy, city builder and simulation game developed by Slavic Magic and published by Hooded Horse. Released on April 26th 2024 has received 70,300 reviews of which 60,884 were positive and 9,416 were negative resulting in a rating of 8.5 out of 10. With 4,080 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Diplomacy is Not an Option.
8.5
60,884
9,416
4,080
players
10. They Are Billions
Similarity 70% They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse? They Are Billions is a base-building, colony sim and strategy game developed and published by Numantian Games. Released on June 18th 2019 has received 48,378 reviews of which 41,188 were positive and 7,190 were negative resulting in a rating of 8.4 out of 10. With 3,861 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Diplomacy is Not an Option.
8.4
41,188
7,190
3,861
players
Best deals on games like Diplomacy is Not an Option on Steam
Discover fantastic savings with the best discounts on a variety of games like Diplomacy is Not an Option 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 games like Diplomacy is Not an Option.
1. Naheulbeuk's Dungeon Master
Similarity 54% A dungeon in danger ! Build, manage, and defend your tower in the satirical heroic fantasy universe of Dungeon of Naheulbeuk. From a shaky establishment to an infamous lair! Naheulbeuk's Dungeon Master is a management, simulation and funny game developed by Artefacts Studio and published by Dear Villagers. Released on November 15th 2023 has received 1,373 reviews of which 988 were positive and 385 were negative resulting in a rating of 7.0 out of 10. Featuring a massive 96% discount, this game currently holds the #1 spot in the best deals for games like Diplomacy is Not an Option.
7.0
988
385
-96%
25.00€
1.00€
2. Lords and Villeins
Similarity 55% Build a prosperous settlement in a unique simulation of a feudal economy - each family runs their shop, owns their goods, and trades with other villagers in a free market. You will manage the land, build houses, organise events, set taxes, and balance supply and demand while engaging in diplomacy! Lords and Villeins is a colony sim, strategy and city builder game developed by Honestly Games and published by Fulqrum Publishing. Released on November 10th 2022 has received 865 reviews of which 626 were positive and 239 were negative resulting in a rating of 6.9 out of 10. Thanks to its incredible 96% discount, this game is now the #2 best deal in games like Diplomacy is Not an Option.
6.9
626
239
-96%
27.50€
1.10€
3. Founders' Fortune
Similarity 70% A fantasy village builder focusing on creative building, colonist psychology and base defense. Handle resources, farming, production, tools, diplomacy, families, trading, defense, and research, as well as the wishes, expectations, thoughts, and equipment of every villager. Founders' Fortune is a colony sim, base-building and city builder game developed and published by Dionic Software. Released on December 18th 2020 has received 2,093 reviews of which 1,686 were positive and 407 were negative resulting in a rating of 7.8 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in games like Diplomacy is Not an Option.
7.8
1,686
407
-95%
20.00€
1.00€
4. InfraSpace
Similarity 50% Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain. InfraSpace is a city builder, automation and transportation game developed and published by Dionic Software. Released on September 22nd 2023 has received 1,611 reviews of which 1,297 were positive and 314 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 95% discount, this title has earned the #4 position in the best deals for games like Diplomacy is Not an Option.
7.7
1,297
314
-95%
20.00€
1.00€
5. Autonauts vs Piratebots
Similarity 53% Create, automate and defend an impenetrable base. Assemble and command a Bot army to combat an entire Piratebot invasion. Build, program and battle your way through five different zones. Autonauts vs Piratebots is a simulation, strategy and automation game developed by Denki and published by Curve Games. Released on July 28th 2022 has received 480 reviews of which 380 were positive and 100 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 95% discount, this title has earned the #5 position in the best deals for games like Diplomacy is Not an Option.
7.5
380
100
-95%
20.00€
1.00€
6. Honey, I Joined a Cult
Similarity 55% It's time to start working towards that ultimate goal of enlightenment, faith and money…lots and lots of money! Become the ultimate tycoon - create, customise, and manage your own cult whilst listening to funky music. Welcome to Honey, I Joined a Cult! Honey, I Joined a Cult is a simulation, base-building and resource management game developed by Sole Survivor Games and published by Team17. Released on November 03rd 2022 has received 1,713 reviews of which 1,268 were positive and 445 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 95% discount, this title has earned the #6 position in the best deals for games like Diplomacy is Not an Option.
7.2
1,268
445
-95%
23.40€
1.17€
7. Stronghold Crusader 2
Similarity 60% Stronghold Crusader 2 is the long awaited sequel to the original castle sim. After 12 years Stronghold returns to the desert with a new 3D engine and powerful Havok Physics. Crusader 2 recaptures the original game’s addictive, fast-paced gameplay and authentic castle simulation. Stronghold Crusader 2 is a strategy, medieval and city builder game developed and published by FireFly Studios. Released on September 22nd 2014 has received 16,919 reviews of which 12,202 were positive and 4,717 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 95% discount, this title has earned the #7 position in the best deals for games like Diplomacy is Not an Option.
7.1
12,202
4,717
-95%
34.80€
1.74€
8. Snowtopia: Ski Resort Builder
Similarity 63% Build your ideal ski resort. Keep skiers smiling with fresh pistes and fine facilities. Ski, build and chill in the wintry world of Snowtopia where everyone is welcome! Snowtopia: Ski Resort Builder is a simulation, building and management game developed by TeaForTwo and published by Goblinz Publishing and Maple Whispering Limited. Released on December 14th 2022 has received 1,162 reviews of which 713 were positive and 449 were negative resulting in a rating of 6 out of 10. Currently offered at a significant 94% discount, this title has earned the #8 position in the best deals for games like Diplomacy is Not an Option.
6
713
449
-94%
19.83€
1.19€
9. Medieval Kingdom Wars
Similarity 52% 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… Medieval Kingdom Wars is a grand strategy, rts and medieval game developed by Reverie World Studios and published by indie.io. Released on January 03rd 2019 has received 2,585 reviews of which 1,977 were positive and 608 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 93% discount, this title has earned the #9 position in the best deals for games like Diplomacy is Not an Option.
7.4
1,977
608
-93%
14.29€
1.00€
10. Life is Feudal: Forest Village
Similarity 65% LiF:Forest Village is a city builder with survival aspects in a realistic harsh medieval world. Shape, build and expand your settlement, grow various food to prevent your villagers from avitaminosis and starvation. Possess them for additional micromanagement or simply to wander around. Life is Feudal: Forest Village is a city builder, colony sim and strategy game developed by Mindillusion and published by Bitbox Ltd.. Released on May 26th 2017 has received 5,873 reviews of which 3,892 were positive and 1,981 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 93% discount, this title has earned the #10 position in the best deals for games like Diplomacy is Not an Option.
6.5
3,892
1,981
-93%
24.57€
1.72€
Free games like Diplomacy is Not an Option on Steam
Check out this fantastic list of free-to-play games like Diplomacy is Not an Option 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 games like Diplomacy is Not an Option.
1. Stronghold Kingdoms
Similarity 60% A massively multiplayer grand strategy game, Stronghold Kingdoms is about forging alliances, political mind games, city-building and castle sieges with thousands of other players! Stronghold Kingdoms is a strategy, free to play and medieval game developed and published by FireFly Studios. Released on February 27th 2012 has received 9,298 reviews of which 5,950 were positive and 3,348 were negative resulting in a rating of 6.3 out of 10. With 384 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Diplomacy is Not an Option.
6.3
5,950
3,348
384
players
2. Kingdom: Classic
Similarity 59% Kingdom is a 2D sidescrolling strategy/resource management hybrid with a minimalist feel wrapped in a beautiful, modern pixel art aesthetic. Kingdom: Classic is a free to play, singleplayer and strategy game developed by Noio and Licorice and published by Raw Fury. Released on October 21st 2015 has received 21,983 reviews of which 19,934 were positive and 2,049 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #2 spot among the most played free games like Diplomacy is Not an Option.
8.9
19,934
2,049
72
players
3. Crustacean Nations
Similarity 52% 🦀Crustacean Nations🦀 is a real-time strategy game about total crab warfare. Build a sprawling sand castle and amass huge armies to dominate the beach and become the one true crustacean nation! Crustacean Nations is a strategy, casual and action rts game developed and published by Team Beans. Released on August 19th 2022 has received 450 reviews of which 417 were positive and 33 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #3 spot among the most played free games like Diplomacy is Not an Option.
8.6
417
33
4
players
4. Oxygen: First Breath
Similarity 53% This is a free version of Oxygen, featuring the first 50 game-days. Build your city around the Oxygen Center and ensure your people's survival in a post-apocalyptic future, threatened by crack explosions, deadly winds, droughts and frosts. Lead your people and keep the Oxygen Center running! Oxygen: First Breath is a strategy, base building and simulation game developed by Turquoise Revival Games and published by GrabTheGames and UpgradePoint. Released on October 07th 2022 has received 1,584 reviews of which 1,423 were positive and 161 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #4 spot among the most played free games like Diplomacy is Not an Option.
8.6
1,423
161
3
players
5. Kingdom Wars
Similarity 50% Kingdom Wars is a free to play 3D MMORTS with real-time siege combat, without the pay to win element so common in the genre. Kingdom Wars offers beautiful 3D online world, where players construct strongholds, direct citizens, complete quests and eventually manage a global empire. Kingdom Wars is a strategy, free to play and rts game developed by Reverie World Studios and published by . Released on April 01st 2013 has received 2,779 reviews of which 1,871 were positive and 908 were negative resulting in a rating of 6.6 out of 10. The game currently holds the #5 spot among the most played free games like Diplomacy is Not an Option.
6.6
1,871
908
1
players