Beat off waves of snow monsters, connect cannons to get more and more improved cannon models. Monsters are strong and there are a lot of them, they constantly attack. Upgrade the base and guns, defeat them all!

Connect identical guns to get a more powerful cannon, destroyed monsters bring coins with which you can buy new guns. For coins, you can also improve the base by making it stronger and repairing damage You can also strengthen the guns by pumping each one to the maximum level. If you can't repel the wave, upgrade new guns and try again. The game saves all the data at the beginning of a new wave.