No deposit bonuses are small sums – usually £5 or £10 – that are paid without you having to make a deposit at all: They’re an incentive to get you to join up and are large enough to let you take a guided tour of the games.
Like deposit bonuses, they come with playthrough requirements as well, typically around the same size as those that come with deposit bonuses – though given their size, you can invariably get access to your winnings quicker.
A major issue with no deposit roulette bonuses is game weightings:
Casinos like to direct players towards slot games, and not table games like roulette. This means that not all of a roulette bet counts towards meeting your playthrough requirements. All casinos have game weighting tables in their terms and conditions, and these will tell you how much of your roulette bet counts: It’ll vary from 10% up to 50% - though it may be zero, or it may be zero for selected types of low odds bets like odd/even, red/black, high/low and the dozens bets.
If roulette has a zero weighting at your casino, check to make sure that playing roulette doesn’t actually invalidate the bonus as this can happen to the unwary.
If the idea of playthrough requirements doesn’t appeal, you can always ask not to be given a bonus. IF you take this option and the casino agrees, you’ll need to keep written proof from them in case they forget when it comes to making withdrawals. Hardly any players take this option so they won’t be used to it.