Defly.io is a new Diep.io style game at k2t2.com. Fly your helicopter and shoot at your enemies. Build your territory and defend it as long as possible. Keep upgrading yourself to make a good self defense. Play Defly.io unblocked.
Move: WASD (or arrow keys)
Build: Right Click or Space
Shoot: Left click
Upgrade: click the skill or press keys 1-7