With crash gambling, you bet on a multiplier target, such as 1.5 x or 2x

https://www.4shared.com/office/iztrvwZ1ge/pdf-15878-63136.html

With crash gambling, you bet on a multiplier target, such as 1.5 x or 2x. If the multiplier never reaches your chosen point, your bet is lost; if it does, you can take earnings.