It is common for users to first start out at online casinos by claiming a free bonus which lets the user try out several of the casino games before making the decision to purchase more credits. If they are lucky it is possible to win some money, if they are extremely lucky they might even hit a progressive jackpot. Of course this is not going to happen very often but still it is possible. Promotions given by the casinos where as a person can collect free money is not meant by any means to make a person rich. It just gives a little taste of what is in store if they continue on and hopefully they find the games entertaining. If you want to sample machines in a casino then it is a simple process to claim.