The aim of the game is to cash out your bet before the jet explodes. The higher the jet flies, the higher your potential payment. Remember through that it can explode at any time. The jet's flight height is not determined and can vary from 1 to the maximum win cap.
JetX game rules are very simple. The main gameplay consists of a jet that takes to the skies until it explodes. Along with the plane, the multiplier of your win also grows. The multiplier starts at 1.01x and can go up to 999.999x.