Citadel: Fortress Defense is a free Action game you can play instantly in your browser, with no download and no registration. How to play: 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 - back to the Lord H - barracks T - market U - upgrades. It renders at 1280 by 720 pixels and scales to your window. It joined SaGo Games on October 29, 2026. It is an HTML5 build, so it loads in any modern desktop or mobile browser.
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.