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Citadel: Fortress Defense

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About Citadel: Fortress Defense

Citadel: Fortress Defense is a action game that runs instantly in your browser. Expect building, castle and defense. It plays in a landscape window and is controlled with keyboard or mouse. It is designed mainly for computers; on a phone, turn it sideways and try fullscreen.

From the developer

Citadel: Fortress Defense is a 3D medieval strategy game in first person. Each day you build your town, then a raid comes. Build walls, gates, houses, farms, sawmills, quarries, towers, barracks, a market and a mage tower. Gather wood, stone, gold and food. Characters: you are the Lord.

Hire knights, archers and mages and control any soldier in battle. Enemies: goblins, bandits, skeletons, shamans and enemy soldiers break through walls; every fifth day a boss arrives. Each raid is stronger: spend renown on upgrades, raise stone walls and expand your land.

Mode: single player endless survival. If the town hall falls, the game is over.

How to play

  1. WASD move Shift run Mouse look LMB attack build RMB cancel build B.
  2. Build mode 1-9 and 0 pick building R rotate X demolish 1-9.
  3. Control a soldier Q E switch soldier G.
  4. Back to the Lord H barracks T market U upgrades.

Tips

  • Spend early upgrades on damage or fire rate; they make every later wave easier.
  • Upgrade a few good towers instead of spreading coins across many weak ones.
  • Prepare the next order while the current one cooks so customers never wait.

Game info

CategoryAction
Tags3D, Building, Castle, Defense, Fantasy, Knight
ControlsKeyboard, Mouse
Players1
ScreenLandscape (1280×720)
MobileBest on desktop
Made byThird-party developer, distributed by GameMonetize
Added2026-10-11

FAQ

How does Citadel: Fortress Defense work?

WASD move Shift run Mouse look LMB attack build RMB cancel build B. Build mode 1-9 and 0 pick building R rotate X demolish 1-9. Control a soldier Q E switch soldier G. Input: Keyboard, Mouse.

Does Citadel: Fortress Defense work on mobile?

It is built mainly for desktop (keyboard, mouse). It may run on a tablet, but a computer gives the best experience.

Do I need to download Citadel: Fortress Defense?

Citadel: Fortress Defense is free to play on KoiArcade with no download and no account. It runs in a standard browser such as Chrome, Edge, Safari or Firefox; the game itself may show short ads.

What games are like Citadel: Fortress Defense?

If you enjoy Citadel: Fortress Defense, try Legiontide Army Runner, Build a Keycap Pyramid, Ashen Watch. You'll find more in our Action games.

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