Copter.io is an addicting helicopter flying .io game online. This multiplayer arena fighting game is very similar to the phenomenal title called Defly.io. Choose a server, control your copter and compete against other pilots by shooting them down. Evade enemy shots by outmaneuvering them. Earn medals by completing achievements. There are various target objectives to complete such as killing other players or reaching a certain score. Try to destroy as many opponents as you can and become the first player of the leaderboard. Use your W,A,S,D keys to navigate the helicopter around the map. Aim using your mouse cursor or left and right arrow keys. Shoot with your left mouse button or by pressing your up arrow key. Special abilities can be activated with the right mouse button or E key. You can customize all buttons in the options menu. Can you eliminate all enemy copters in this super awesome .io game online called Copter.io?