To win any Crash Game, you need to accept your winnings before the crash, either by bailing from the ship in the case of Draftkings Rocket or ejecting in other games; this is similar to "Collecting" you win on a slot, but the decision of when to accept your win is left to the player, hold out too long and the crash results in no win. In Rocket, collecting your win can be done manually, or with the auto bet options, you can specify a particular level to claim any wins, such as a 2x stake.