Top similar games like Diplomacy is Not an Option:

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.

Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.

A 2D Strategic Base Defender game set in Medieval times. As relentless Waves of enemy forces threaten your Stronghold, you must gather Resources, Fortify your Defenses and lead your Rebellion. Prepare to strengthen your Base and manage your Resources. But beaware of the Storms!

Machinefall is a post-apocalyptic real-time strategy game that combines base building, resource management, large-scale battles, and a massive world map. Step into a shattered world where humanity is on the brink of extinction, fighting against an overwhelming swarm of mechanical adversaries.

Microsoft Studios brings you three epic Age of Empires III games in one monumental collection for the first time.

Age of Respair is a medieval strategy castle-builder. Build massive castles with fortifications while managing resources and production chains. Assemble a large army and lay siege to enemy castles. Lead your people and bring respair to your kingdom🏰⚔️

Return to the era of knights and castles in a uniquely satisfying mix of Settlement Building, RTS and Castle Simulation genres. Manage complex and realistic medieval production chains, build your army and defences, satisfy the King and lead your people to prosperity. Will you succeed as a new lord?

Astra Sentinel is a real-time strategy game in which you must defend planetary systems from endless hordes of aliens. Reconquer planets, build on their surface and prepare to counterattack. Will you be able to recover the control of the galaxy?

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.

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.

Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?

Survive and thrive in a post-apocalyptic future — resources are scarce, but opportunity calls! Build the ultimate disaster proof colony, protect your colonists, and restore civilization to a devastated world.

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.

Small Kingdoms is a streamlined grand strategy and RTS game with procedurally generated campaigns. Build up your cities and armies on the world map and command your troops on the battlefield. Rule a medieval fantasy kingdom and conquer your rivals.

Becastled is about building and defending your castle from sieges in a fantasy world!

From the plains in the Pampas to the most hostile places in the untamed Patagonia: Manage your own frontier fort or native settlement, build new structures, train soldiers, and survive relentless attacks from the enemy.

Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.

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.

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.

Alone on a plot of land with a few resources and a single building, your civilization will begin here. Exploit resources, explore and conquer other regions, develop technologies, and fend off relentless barbarian attacks. Everything is manageable: they don't have a dragon!

Set in a gritty, fictional 1960s universe, it’s a colony sim & base-building hybrid where you rebuild a war-ravaged region, fortify your defenses, and control key trade routes that every convoy depends on.

Repterra is a base-building strategy game set in a world overrun by dinosaurs. Fend off massive hordes while building your colony. Manage resources, breed your own dinos, and research genetic mutations to survive in this dino-infested land.

Lead your faction of omins in fantastic worlds, build their villages, train their skills, satisfy their needs, and send them to war! Will you save them from the destruction deity Nefasto and his hordes of Gormuns? Play the role of a deity in this real-time strategy inspired by the classic god games.

Here Comes the Swarm is a survival RTS with a pause button. Build and defend settlements, lead expeditions to eradicate fiends and deal a blow to the hivemind. Set in an infested world in ruin, will you reclaim Ulora from the relentless Swarm?

Immerse yourself in an exciting medieval settlement simulator where you will have to fight for your place in the feudal hierarchy. Use a smart strategy to develop your settlement. After all, it is the skills and equipment of each peasant that can make the difference.

Lanternia is a survival RTS with roguelite and deckbuilding elements. Build, defend, and expand the village in a dark wood, illuminated only with lanterns.

The original Frostpunk experience is being reimagined and expanded with new events, mechanics, and laws within a new Purpose Path. Return to your role as the ruler of Earth's last city, manage its citizens, weigh up your choices and ensure your society's survival.

Rediscover the classic gameplay of 1701 A.D. and its expansion The Sunken Dragon in Anno® 1701 History Edition.

Experience the ultimate WWII RTS platform with COH2 and its standalone expansions. This package includes the base game, which you can then upgrade by purchasing The Western Front Armies, Ardennes Assault and/or The British Forces. More info in the "About This Game" section below.