A gaming environment is described. In a base game, one or more paylines to be activated and a bet number for the activated paylines are set. If a combination of displayed symbols on the activated payline is a winning combination, an outcome amount is calculated by multiplying a payout number corresponding to the realized winning combination by the bet number, and the calculated outcome amount will be provided to the player. Also, a payout number corresponding to the number of the activated paylines will be additionally provided to the player.