All upgrades are free.
Your mission in this fun tower defense style game is to defend your kingdom from the raiding barbarians by placing towers, archers and other means of defense. Barbarians will try new tactics so don't let your gard down majesty. Hire archers or buy cannons, increase their range and speed, purchase special skills to burn or freeze your enemies. If you keep surviving the magician will help you, and the pack master will bring you new items.