Zlapio Swing your club and kill other players in Zlap.io our newest .io game Use WASD or arrow keys to move, swing the club using your mouse. Momentum is the key to success in Zlapio. Every character swings a brightly colored mace around themselves, bashing anything nearby. You can drag the mace behind you, but it won’t do much good. In order to deal real damage, you must swing the mace in big circles, building up speed and power. Skilled players seem to know how to get the most strength out of a few revolutions. There’s a somewhat steep learning curve here, and practicing is the only way to get better. You can watch and learn from other players’ moves, but be careful—idle characters are easy targets.