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

https://csgo-crash-simulatorkxhe806.cloudhinter.com/posts/20-reasons-why-crash-game-cs-go-cannot-be-forgotten

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