We can add games to your standard XBOX system. If the game is available to us, the cost is $2 per game for regular customization. If we have to locate the game that’s not on the list, the cost is $4 per game for special customization. Please order the right quantities for your customization. Please contact us and let us know a list of games you would like to be added to your system. This must be done before shipment of your system.