Preliminary bonus feature for electronic casino games

Abstract

The present invention discloses a method wherein a preliminary bonus feature is added to a primary casino game. The preliminary bonus feature is based on the outcome of a random event or multiple random events that takes place before the outcome of the primary casino game is determined. A wide variety of random events could be utilized, such as: the value, color or suit of a random card, the roll of dice, the spin of a wheel or slot reel, the flip of a coin, electronically displaying a random number on display means, a randomized display of symbols, etc. The outcome of the preliminary bonus feature is determined prior to determining the outcome of the primary game, and the outcome of the primary game cannot be adversely affected when the preliminary bonus feature has been triggered.

We claim:  
     
         1 ) A prelimanary bonus feature that is completed prior to the completion of an primary casino game comprising the steps of: 
 a) establishing a predetermined probability that the prelimanary bonus feature will trigger;    b) placing a wager to participate in the primary casino game;    c) if the predetermined probability results in the prelimanary bonus feature being triggered, the wager being adjusted based on a outcome to the prelimanary bonus feature, before the outcome of the primary casino game is determined;    d) if the predetermined probability results in the prelimanary bonus feature not being triggered, the wager remaining unchanged, before the outcome of the electronic casino game is determined; and,    e) a outcome to the electronic casino game being determined with payouts being provided for winning combinations.