Defly.io (cool copter io game) is an io game that is a mixture of diep.io and splix style games. You start the game with a helicopter and then try to destroy your enemies by shooting them in respectful and competitive duels. Build walls to protect yourself and conquer as much territory as possible. Fill the empty spaces on the map to improve your planes and buildings. Defeat your enemies with incredible super powers!

Before starting the Defly.io game, you must choose a helicopter image. You can then choose the most suitable game mode to start the game. Defly.io has two game modes: one-on-one combat and team play.

Create towers by right-clicking or space-space and connect them by jumping on them. When you close an area you will earn points and level points. Walls can block enemy bullets and can be used to protect yourself, but your own bullets can pass through walls! Defend yourself and eliminate those who attack you until you level up. Expand your territory and try to capture the entire map.