How many levels is the map of Peak Battleship full?

Level 40. According to official website, in the game of Peak Battleship, each constellation in Peak Battleship can get its unique skill when its map is upgraded to level 32, and the intensity of this skill will be upgraded to level 40. "Peak Battleship" is a naval battle theme game released by heroes for mutual entertainment. The game is made by 3D technology. Based on real warships, it highly restores famous battle maps and strives to restore the most realistic naval battle scenes for players.