The welcome bonus is offered by almost every online casino in order to attract new players. We keep track of all the best online casino welcome bonuses. Check out our list and make sure you get the most bang for your buck. This bonus is available only to a player creating an account for the first time on a given casino website. Online casinos offer new players some of the most lucrative bonuses out there because they want to get more players on their sites. This bonus might be a deposit match, where the casino matches your deposit up to a certain percentage. It might also give you free chips or free spins with no deposit requirements.