A system of linked gaming machines is disclosed herein. Upon a certain triggering event occurring, eligible gaming machines simultaneously receive a signal for initiating a free game bonus round. The players that have been playing the gaming machines will then play a certain number of free games in a...http://www.google.fr/patents/US7458889?utm_source=gb-gplus-shareBrevet US7458889 - Bonus round for multiple gaming machines where award is multiplied based on certain variables
Bonus round for multiple gaming machines where award is multiplied based on ...
