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

https://www.4shared.com/office/rU2FPr3Qfa/pdf-91421-44877.html

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