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

https://www.4shared.com/office/JCruMW0yjq/pdf-21994-11725.html

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