Top similar games like Citadel 's Keeper:

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.

City of Promotion est un jeu qui combine les échecs et la construction de colonies, où les joueurs utilisent les règles de déplacement des pièces d'échecs pour collecter des ressources, développer des colonies et résister aux attaques de monstres en essaim.

Loulan Kingdom is a city-building survival and real-time strategy game. As the ruler of Loulan, you must build your city amid a perilous desert oasis, grow your power through the Silk Road, and fight to protect your kingdom—until the very end.

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!

Can you build the longest bridge before the storm catches up? Stormbridge is a roguelite city builder about growth, survival, and watching everything fall apart. Stay ahead of the danger, unlock upgrades between runs, and uncover the storm’s origin.

In this Procedural City-Building and Survival game, you must manage your resources, expand your village, assemble an army and destroy the source of evil, which changed the entire eco system of a land that was once prosperous and peaceful.

NecroCity: Prologue is just part of the gameplay that awaits you in the full version of the game. Take on the role of the young Prince of Undead, trying to prove himself in the world of the Undead Kingdom. Push back the hordes of monsters and build your fortress! 🔥

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

Eversiege is a roguelike, tower defense in which you'll defend a castle in procedurally generated terrain. Establish a production, build defending buildings and survive waves of enemies coming from everywhere! After defeat, buy new buildings, unlock new leaders and prepare to fight again.

Develop and expand your town as you fend off eerie creatures from the mist. Choose from a variety of buildings and strategies, make tactical decisions, join defensive battles personally, protect your town and fulfill your ultimate goals.

Eternal Siege is an evolutionary tower defense based around min-max resource management, efficient use of spells, and (hopefully) building some towers. Start in the Ancient Greek era and defend your way through the human eras (Roman, medieval, modern, etc). Can you survive the human extinction era?

Lead your kingdom to victory! By day, you build and prepare your kingdom for impending threats. But every night, you must defend your kingdom against hordes of monsters, by commanding soldiers, building turrets, and fighting on the battleground yourself.

Upgrade and evolve, expand your territory, and build mighty defense towers to repel hordes of monsters.

Aim, fire, and fortify. Shogun's Stand is a fast-paced tower defense where you take direct control of your castle against relentless waves of feudal enemies. Place traps, command the battlefield, and level up to survive!

Discover a unique blend of Colony Sim and Tactical RPG. Recruit and train your heroes, build your outpost, explore dungeons and engage in turn-based strategic battles to protect and expand your domain. Shape your stories by managing moods, relationships, ambitions and more!

A fast-paced lane defense strategy game where you build your economy, place units, and defend your kingdom against relentless enemy waves across various bioms

Here is Scarecropia! Lead at most 400 people to build a settlement. Arm your village to fight against the Goblin army, or invest limited resources in yourself to become unparalleled! Take every cost to survive!

You are dead. But your ghostly hand still commands. Hellcrown is a roguelite strategy game where every run unfolds into a chain of random stories, sieges, and consequences.

Avian Colony is a survival simulation game that places you in the role of the ruler of a floating colony in a harsh sky world. Your main goal is to ensure the survival and prosperity of your colony by managing resources, planning strategically, and defending against threats.

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.

Build a colony from scratch, set up production chains, and defend against raids. Manage resources, research technologies, expand your settlement, and survive each escalating wave!

Spires of Morosith is a tactical tower defense game with a blend of real-time-strategy elements.

Paddle Protectors is an mix of tower defense, real-time strategy and city-building. You will fight against crabs. Establish farms and factories to produce ammunition and resources, fortify your land, lead your soldiers and tanks.

Build by day, defend by night! In this story-driven city builder, take direct control of your ruler to protect the realm. Explore diverse lands, upgrade your leader's abilities, command armies against monstrous hordes, and uncover the dark secrets of your lineage.

Build, manage and defend your fantasy tavern.

Build and manage a peaceful 17th-century colony. Gather resources, create production chains, trade with the Old World, and survive without combat or warfare.

Build and lead a colony on the surface of an endless Wall. Manage resources and your people, develop new technologies, defend against relentless zyrex attacks, and send robo-spiders on risky expeditions. Keep the colony from collapsing – in Wall World, it's easy to fall.

The moon shattered. The world froze. Take command of a nomadic train city hurtling through a war-ravaged frozen wasteland. In this survival city builder on rails, gather survivors, scavenge resources, and do whatever it takes to keep the engine running and stay ahead of the frost.

Forward Defense is a top-down 3D singleplayer tower defense game. Join the United Coalition Force and defeat insurgent forces armed with Technicals and Armored Personnel Carriers in a war-torn region of the Middle East.