Abstract: A gaming system including one or more community game triggering events which function to both: (i) trigger a play of a community game and (ii) determine which players participate in the triggered community game. If a community game triggering event occurs, the gaming system causes a player playing a primary game associated with the occurrence of the community game triggering event to participate in a play of a community game. The gaming system additionally causes zero, one or more other players (i.e., players different from the player playing the primary game associated with the occurrence of the community game triggering event) to also participate in the play of the community game. The gaming system determines which other players participate in the play of the community game based on the specific community game triggering event which occurred.

Abstract: A player plays a first round of a casino slot machine game. If the player achieves a winning outcome on the first round of play, the payouts for the next round of play of the casino game will be increased. The amount of the increase is based on the category of the winning outcome on the first round of play. Each subsequent round of play continues to have increased payouts if the player continues to achieve winning outcomes. When the player has a losing outcome, the payouts revert to the base level. An extra wager may be required from the player to activate this feature during the play of the casino game.