A gaming machine is operable to conduct a wagering game. The machine includes a processor, a display, and memory. In response to a wager amount, the processor randomly selects one of a plurality of outcomes and causes the selected outcome to be represented on the display. The memory stores multiple data sets related to the game's visual thematic elements, sounds, and/or math. The processor selects which data set to employ for the conducted game based on a time signal monitored by the processor.