Build and develop a medieval kingdom, recruit knights, archers and wizards, gather resources, form alliances and embark on adventures. Kingdoms Under Siege is a browser strategy game in public beta. Free to play with optional purchases; no download required.
Create a free Kingdom Passport, then enter the game to develop your keep, gather resources and recruit troops. Use the kingdom menu to explore adventures and alliances.
Kingdoms Under Siege was submitted to SlowDen by Master Mason — Sam’s Kingdom. SlowDen did not make this game - it is published here from the developer's own submission, added on 2026-10-24. It runs in the browser with no download, no install and no sign-up.