Games Like Diplomacy is Not an Option

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?

Why similar: Colony Sim 26.4% ★, Base Building 20.8%, Zombies 15.3%, RTS 8.8%, Tower Defense 7%

Why You'll Like It: This is the definitive horde-survival RTS that directly inspired the core gameplay loop of defending a base against thousands of enemies.

Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.

Why similar: Colony Sim 17.5% ★, Real-Time with Pause 13.6% ★, Zombies 11.4%, Base Building 10.7%, Resource Management 8.7%

Why You'll Like It: It shares a deep focus on modular castle construction and tactical defense against waves of monsters in a grim fantasy setting.

Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world.

Why similar: Action RTS 17% ★, Base Building 16.5%, Medieval 13.2%, RTS 11%, Tower Defense 10.8%

Why You'll Like It: A dark fantasy RTS that pits your small army against massive, procedurally generated swarms of nightmares.

Build a castle by day and defend it by night. Becastled blends cozy city-building with challenging tower defense strategy. Lead the Sun Kingdom’s last stand against the Moon Beasts and end the ancient conflict between light and darkness!

Why similar: Base Building 25.6%, Colony Sim 23% ★, Medieval 13.9%, RTS 10.1%, War 7.7%

Why You'll Like It: A dedicated castle-building game where the primary goal is to design defenses capable of surviving nightly sieges.

A minimalist game about building and defending your little kingdom.

Why similar: Medieval 22.9%, Tower Defense 22.7%, Action RTS 20.2% ★, Base Building 18.1%, Isometric 9.8%

Why You'll Like It: A minimalist but highly intense strategy game that strips away complexity to focus purely on base defense and tactical positioning.

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.

Why similar: Colony Sim 16.7% ★, Real-Time with Pause 15.2% ★, Base Building 12%, Action RTS 10.6% ★, Zombies 10%

Why You'll Like It: This game focuses on managing large-scale unit counts and base expansion while constantly fending off overwhelming alien threats.

Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.

Why similar: Colony Sim 22.2% ★, Historical 13.2%, Medieval 13.2%, Base Building 13.1%, Resource Management 9.5%

Why You'll Like It: The classic foundation for medieval castle-building and siege warfare, focusing on economy and defensive architecture.

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.

Why similar: Colony Sim 30.6% ★, Historical 20.7%, Base Building 19%, Resource Management 16.2%, Survival 6.5%

Why You'll Like It: A high-pressure, roguelite city-builder that requires constant adaptation to survive harsh environments and demanding objectives.

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.

Why similar: Colony Sim 30.6% ★, Historical 20.9%, Base Building 18.9%, Resource Management 16.1%, Survival 6.6%

Why You'll Like It: Offers a highly detailed medieval city-building experience with tactical combat that feels grounded and realistic.

Protect and guide your people as you forge a town from untamed wilderness at the edge of the known world. Harvest raw materials, hunt, fish and farm to survive. Produce crafted items to trade, consume, equip and fight with as you battle for your survival against the elements and outside threats.

Why similar: Colony Sim 24.2% ★, Historical 16.9%, Base Building 14.7%, Resource Management 13.5%, Medieval 13.1%

Why You'll Like It: A deep city-builder that forces you to manage complex supply chains while defending your settlement from raids and environmental hazards.

Warlords Under Siege is a mix of RTS and Roguelike genre, where you build a small city and defend it against continuous waves of enemies. Improve your assortment of weapons with each playthrough, unlocking new possibilities to beat the ever-increasing threat.

Why similar: Action RTS 28% ★, Base Building 22.8%, Medieval 20.7%, RTS 14%, Survival 8.6%

Why You'll Like It: Combines RTS mechanics with tower defense elements to create a fast-paced experience of holding ground against massive armies.

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.

Why similar: Colony Sim 35.2% ★, Historical 22.3%, Base Building 21.1%, Survival 7.6%, PvE 6.4%

Why You'll Like It: A 3D colony sim that allows for complex vertical building and defensive planning in a post-plague medieval world.

From the Command & Conquer veterans at Petroglyph comes the first ever survival RTS set in the savage world of Conan the Barbarian. Play solo or team up in multiplayer in Conan Unconquered’s action-packed co-op Mode where you build a shared stronghold and fend off the hordes together.

Why similar: RTS 32.2%, Base Building 24.5%, Tower Defense 16.5%, Strategy 16%, Simulation 6%

Why You'll Like It: A real-time survival strategy game where you must build a fortress and manage resources to withstand waves of increasingly difficult enemies.

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.

Why similar: Colony Sim 44.6% ★, Medieval 17.6%, Base Building 12.2%, Resource Management 10.8%, RTS 4.5%

Why You'll Like It: An accessible but challenging city-builder that focuses on building strong fortifications to survive dragon and Viking attacks.

Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!

Why similar: Colony Sim 24.6% ★, RTS 18%, Base Building 16.1%, Resource Management 11.7%, War 8.4%

Why You'll Like It: An RTS that emphasizes survival, exploration, and resource management in a harsh, unforgiving Viking-inspired world.

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.

Why similar: Colony Sim 38.8% ★, Medieval 21.1%, Base Building 13.6%, Resource Management 12.2%, Survival 8.2%

Why You'll Like It: A resource-heavy survival city-builder that requires careful planning to keep your population alive through disasters and external threats.

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.

Why similar: Colony Sim 31.4% ★, Historical 20.5%, Base Building 19%, Resource Management 15.7%, Survival 6.3%

Why You'll Like It: A medieval kingdom management sim that focuses on the social and survival dynamics of a ruling family under constant pressure.

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?

Why similar: Colony Sim 34.9% ★, Resource Management 22.7%, Base Building 11.4%, Survival 10.3%, Real-Time with Pause 7.4% ★

Why You'll Like It: A brutal survival city-builder where every decision is a matter of life and death for your colony in a frozen wasteland.

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.

Why similar: Colony Sim 31.2% ★, Base Building 19.7%, Tower Defense 18.2%, Medieval 17.1%, Survival 6.8%

Why You'll Like It: A side-scrolling base-defense game that captures the feeling of building a kingdom and protecting it from nightly waves of greed.

Defend the last bastion of humanity with your squad of heroes! Exterminate fiendish monsters with magic and brute force by night and re-build your battered city defenses by day in this tactical RPG with rogue-lite mechanics.

Why similar: Base Building 39%, Tower Defense 27%, Tactical 23.8%, Strategy 10.3%

Why You'll Like It: While turn-based, it perfectly captures the desperate tension of defending a city against thousands of enemies with limited resources.

Choose any real region from the world. Choose your base of operations, then rebuild and readapt the buildings around you to create a self-sustaining settlement. Take charge of a group of survivors from your city. And when the night falls - Defend the zone from the infected!

Why similar: Base Building 26.7%, Zombies 25.4%, Colony Sim 24.6% ★, RTS 10.4%, Survival 5.9%

Why You'll Like It: A unique base-building game that uses real-world map data to let you defend any city in the world from zombie hordes.

A medieval city under siege and a handful of civilians are all that keep the walls from falling. Mixing survival strategy and resource management, build your camp, craft supplies, and scavenge the occupied city to supply the last troops holding back the invaders.

Why similar: Base Building 17.4%, Historical 16.8%, Resource Management 16.7%, Medieval 15.6%, Isometric 10.5%

Why You'll Like It: Focuses on the gritty, desperate experience of surviving inside a city under siege, emphasizing resource scavenging and stealth.

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.

Why similar: Colony Sim 52.1% ★, Base Building 30.3%, Survival 9.8%, Strategy 4%, Simulation 3.7%

Why You'll Like It: The gold standard for colony survival sims, offering endless threats and base-building challenges that require constant tactical management.

Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.

Why similar: Medieval 25%, Colony Sim 21.6% ★, Resource Management 17.9%, Base Building 13.3%, RTS 7.3%

Why You'll Like It: An organic city-builder that allows for unique, grid-less construction and focuses on the growth of a medieval community.

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…

Why similar: Base Building 21.2%, Action RTS 19.2% ★, Medieval 18.7%, RTS 14.5%, War 9.7%

Why You'll Like It: Combines grand strategy with real-time siege battles, offering a large-scale look at medieval warfare and kingdom management.

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.

Why similar: Colony Sim 36.5% ★, Base Building 12.4%, Medieval 12.2%, Historical 12.2%, Resource Management 11.8%

Why You'll Like It: A city-builder with a strong focus on social survival and managing the complex needs of your citizens during difficult times.

Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.

Why similar: Colony Sim 23% ★, Medieval 12.5%, Base Building 12.4%, Historical 11.1%, RTS 8%

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.

Why similar: Colony Sim 25.9% ★, Base Building 13.8%, Medieval 10.1%, Action RTS 10% ★, RTS 9.6%

Ancestors Legacy is a squad-based real time strategy with a strong focus on tactics. Inspired by medieval European history, it brings to life four different nations and their conflicts, usually solved by war.

Why similar: Medieval 25.6%, Historical 24.6%, RTS 19.2%, War 8.7%, Strategy 8.6%

Why You'll Like It: A squad-based RTS that focuses on tactical medieval combat and environmental awareness rather than just massive base building.

Become the king and fight over Europe in this fresh take on medieval real-time grand strategy. Manage provinces, gather armies, initiate diplomacy, and dabble in espionage. The path is open: become the true Sovereign of your people and bring them to glory.

Why similar: Medieval 34.2%, Historical 23.8%, RTS 22.2%, Strategy 12%, Simulation 7.9%

Why You'll Like It: A grand strategy game that includes real-time battles and deep kingdom management, perfect for those who enjoy the medieval politics of the genre.

Your village must survive for 13 days! Gather resources, expand, explore the underground for riches, and train soldiers to defend against hordes of the undead.

Why similar: Base Building 23.4%, Zombies 19.7%, Tower Defense 15.6%, RTS 12%, Survival 8.5%

Why You'll Like It: A 2D side-scrolling survival game that emphasizes base-building and defending your villagers from nightly waves of monsters.

Bad North is a charming but brutal real-time tactics roguelite. Defend your idyllic island kingdom against a horde of Viking invaders, as you lead the desperate exodus of your people. Command your loyal subjects to take full tactical advantage of the unique shape of each island.

Why similar: Tower Defense 23.8%, RTS 22.3%, War 19.2%, Survival 12.4%, Tactical 11.8%

Why You'll Like It: A minimalist real-time tactics game that forces you to defend small, procedurally generated islands from Viking invaders.

Little Kingdom RTS is an indie real-time strategy game set in a medieval fantasy world. Gather resources, build settlements, raise walls, and grow your small kingdom. Command an army of knights, archers, and mages to fight off rival kingdoms, orcs, and undead.

Why similar: Base Building 17.7%, Medieval 14%, Resource Management 13.9%, Action RTS 13.8% ★, RTS 11.5%

Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?

Why similar: Colony Sim 21.6% ★, Real-Time with Pause 16.5% ★, Base Building 13.5%, Action RTS 12% ★, Resource Management 10.9%

Command distinct factions in a desperate struggle for power and resources in Tempest Rising - a classic RTS set on Earth after a nuclear war.

Why similar: RTS 44.1%, Base Building 22.4%, Strategy 11.8%, Action RTS 6.7% ★, Isometric 5.9%

Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!

Why similar: Colony Sim 23.8% ★, Base Building 12.2%, Medieval 11.6%, Historical 11.5%, Military 8.2%

Jump into a realtime strategy, action filled battlefield, deploy relentless soldiers, unlock powerful troops and vehicles, upgrade your army, decimate the enemy. If that's not enough, jump into a chaotic Zombie mode, with traps, fun upgrades, and a new gameplay!

Why similar: Action RTS 20% ★, Base Building 16.1%, Tower Defense 14.4%, War 11.9%, Historical 11.9%

Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.

Why similar: Colony Sim 30.7% ★, Historical 20.8%, Base Building 19.2%, Resource Management 15.8%, Survival 6.4%

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.

Why similar: Colony Sim 40.3% ★, Base Building 20.5%, Survival 10.5%, Strategy 7%, Simulation 6.2%

A brutal godlike village sim that melds the god game, management, and tower defense genres! Fight off hoards of monsters at night, and expand your village in the day time. Inspired by games like Black and White, Rimworld, and Dwarf Fortress but not quite like any of them.

Why similar: Colony Sim 42.7% ★, Base Building 16.7%, Tower Defense 16.4%, Resource Management 7.3%, Survival 6.9%

Humans are long gone. In a world struck by droughts and toxic waste, will your lumberpunk beavers do any better? A sandbox city-building game featuring ingenious animals, vertical architecture, water physics, and terraforming. Contains high amounts of wood.

Why similar: Colony Sim 45% ★, Base Building 23.7%, Level Editor 15.1%, Survival 8.4%, Strategy 4.1%

Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?

Why similar: Colony Sim 20.9% ★, Base Building 15.3%, Zombies 14.6%, Resource Management 12.5%, RTS 7.9%

After Long Night is a sandbox survival RTS. Build and fortify your base, scavenge every corner for vital resources, craft deadly weapons, and raise a militia to fight off relentless zombie hordes that strike every night. In this world, scavenging isn't just survival—it's strategy, power and war.

Why similar: Colony Sim 24.4% ★, Zombies 16.5%, Base Building 15%, Resource Management 12.6%, RTS 10.2%

As the kingdom's most promising pioneer, embark on a legendary journey to tame the frontier! Build thriving towns across various landscapes, fending off waves of diverse enemies until you establish a firm foothold and have explored everything the eye can see!

Why similar: Base Building 28.1%, Medieval 22.4%, Tower Defense 19.7%, RTS 16.1%, Resource Management 8.2%

Lead the Mobile Infantry in this RTS game set in the Starship Troopers film universe. Balance your army composition with a diverse set of unit types, overcome line-of-sight and line-of-fire challenges through tactical positioning, and use special abilities to smash the Arachnid hordes!

Why similar: RTS 27.3%, Military 16.7%, Resource Management 16.6%, War 13.5%, Tactical 10.8%

Lead your Viking clan onto unknown shores and carve out a future for your people in the fjords of Frozenheim. Gather resources, expand, and watch your settlement grow to a bustling town that will withstand the harshness of winter and wrath of other clans.

Why similar: Colony Sim 29.6% ★, Resource Management 20.6%, Base Building 18.8%, Medieval 14.6%, War 10%

Brave a new world in Stranded: Alien Dawn, a planet survival sim placing the fate of a small marooned group in your hands. Forge your story through compelling and immersive strategic gameplay as you make vital decisions to protect your survivors.

Why similar: Base Building 33.1%, Colony Sim 32.7% ★, Resource Management 12.4%, Survival 12.1%, Strategy 4.8%

Enemies are coming! Every decision matters: build your city, grow the economy, and prepare for enemy waves. Strengthen your defenses, adapt your strategy, and unleash your hero’s full potential. This unique Tower Defense will test your skills – are you worthy to claim a place at Valhalla?

Why similar: Base Building 24.5%, Tower Defense 18.2%, Resource Management 13.2%, Medieval 13%, RTS 10.1%

Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!

Why similar: Resource Management 45.8%, Tower Defense 32.1%, Tactical 22.1%

An intense real-time strategy game set in a dark fantasy world of Orcs, Elves and Dragons. Kingdom Wars 2 combines the best of Zombie survival and crafting with complex fast-paced city building. Fight massive siege battles that turn beautiful landscapes into gory blood-soaked battlefields.

Why similar: Colony Sim 20.1% ★, Action RTS 12.9% ★, Base Building 12.7%, Zombies 11.6%, Medieval 9.5%

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.

Why similar: Colony Sim 33.5% ★, Base Building 19.6%, Resource Management 16.7%, Medieval 15.5%, Survival 4.8%

The King is Watching is a roguelite kingdom builder. Rule by the power of your royal gaze! Decide between producing resources, training armies, or balancing both, while adapting to unique events every run

Why similar: Base Building 23.3%, Resource Management 18.3%, Medieval 16.6%, RTS 15.2%, Tower Defense 14%

Build and design the terrain while defending your stronghold against alien invasion in this unique Roguelike tower defense. Choose from 30 heroes, survive enemy waves, and upgrade a variety of destructive towers to hold the line!

Why similar: Base Building 21.3%, Tower Defense 16%, Resource Management 15.4%, RTS 13%, Tactical 8.4%

Eyes of War is a real-time strategy game set in the medieval era, offering both single-player and multiplayer experiences where you can control every unit in character mode. Build your castle, lead your army, and dominate the map. Eyes of War invites you to epic battles of the medieval era!

Why similar: Base Building 15.5%, RTS 15.3%, Resource Management 15.3%, Medieval 12.7%, Historical 12.4%

A city builder with simulated citizens, set in a procedurally-generated world map. Grow your kingdom through the eras from a tiny medieval hamlet into a prosperous global empire! Cooperate or compete in real-time with your friends in multiplayer mode.

Why similar: Colony Sim 35.9% ★, Base Building 21.4%, Resource Management 13.1%, Medieval 12.7%, RTS 7.5%

New Cycle is a city building game with focus on survival. After an apocalyptic series of solar flares, human society has been thrown into disarray. Establish a settlement and develop it all the way from humble beginnings to industrial metropolis.

Why similar: Colony Sim 29.1% ★, Real-Time with Pause 20.6% ★, Base Building 16.8%, Resource Management 13.8%, Survival 6.8%

Warpips is the ultimate quick to learn but amazingly deep tug-of-war strategy game. Deploy the right composition of soldiers, tanks, helicopters and planes in this tight, streamlined strategy-focused war game. Compose the best army, research the right tech; overwhelm your enemy!

Why similar: Resource Management 19.7%, RTS 17.7%, Tower Defense 17.3%, Base Building 16.5%, War 14.3%

The original castle sim, Stronghold HD allows you to design, build and destroy historical castles. Engage in medieval warfare against the AI in one of two single player campaigns or online with up to 8 players.

Why similar: Colony Sim 26.6% ★, Base Building 15.2%, Medieval 13.6%, RTS 9.9%, Tower Defense 9.7%

Tax, torture or treat your peasants! Rehabilitate criminals or sentence them to death? Decide as you enjoy jousting over a lavish banquet, all while under siege from the warmongering Lord Barclay.

Why similar: Colony Sim 25.1% ★, Base Building 13.7%, Medieval 13.3%, RTS 8.7%, Military 8.7%

Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.

Why similar: Colony Sim 29.3% ★, Base Building 17.4%, Resource Management 15.6%, Medieval 14.6%, RTS 11.1%