RNG stands for random number generator. The random number generator is a software routine that is used by the simulation software.  When the player pulls the slot handle or depresses the Spin button, this activates the simulation software. The simulation software simulates the spinning of the reels and the stops, or the places on the reels where the reels stop where the symbols are.  Each of these stops is assigned a number and when a number is selected the reel stops with the corresponding symbol showing on the payout line.  This process is followed for each reel.  The method of number selection is accomplished by the random number generator software.

This software randomly selects numbers without any pattern.  This means that the number selected for second reel’s stop is independent of the number selected for the first reel’s stop. The same thing is true for the third reel’s stop.  The result of this selection of numbers are the three symbols appearing on the payout line. Each symbol that appears is the result of a random selection process. The next spin of the reels begins the selection process for the next set of symbols that appears on the payout line. The next three symbols that appear are also the result of numbers selected by the random number generator. The symbols that appear on the next spin are independent of the symbols that appeared on the last spin. The RNG means that there is no way to predict the outcome of spins on a slot machine. Online Casinos are offering games like slot, roulette, poker, blackjack, bingo and crap - all very popular casino games.