Endless Siege is one of those Friv games online where your mission is to defend the base against hordes of enemies. Do whatever you can to stop the incoming waves of invaders trying to destroy your kingdom. Build defensive structures along the path and upgrade them to increase their health and attacking power. Use your mouse and place each of the structures by dragging your cursor onto a desired area. Click on the building to open its menu and level it up. Collect coins for killing the enemy soldiers. In the Endless Siege game, you can enjoy a new map every day!