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

https://telegra.ph/CS-Crash-Game-Explained-In-Less-Than-140-Characters-09-21

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 revenue.