Net Nanny 6.0 has a new Games Rating feature that is based on ESRB ratings. With Net Nanny 6.0 installed you are automatically protected for 100 games. Net Nanny should also protect any other games that are not in the list based on the ESRB rating and then add them to the list.
The Gaming feature also allows the Admin to fine tune the list by selecting descriptors and also managing the list directly by clicking on each game to Allow or Block.