Two-way communications between casino games and diverse master controllers using a universal game module there between allows routing event messages with standard protocols. The universal game module with a computer processor, circuitry, connection ports, interfaces and protocols allows the communications by evaluating, prioritizing, polling and routing communications. A jackpot group of differing games is possible because the win cycles of the various games can be equalized. The volatility of the games in the group is increased by randomly segregating a percentage of the machines to be eligible to win the progressive jackpot for a limited time period. A life changing jackpot is thus payable for a variety of games in a casino on a relatively frequent basis.