How to play: Use keys WASD for moving, build a line using the spacebar, and click left mouse to fire.
In Defly.io, you direct a small helicopter around a big arena and attempt to make a chain of closed lines to mark your own realm. You need to elude crashing into your own lines, otherwise, you will end up getting destroyed. When bumping into the enemies, just use your weapons to shoot them down and take over their territories. Do not let them get an edge over you! Use your strategies to outwit them, survive as long as possible and reach the top rank on the leaderboard to win.