Remote, central monitoring system for game machines

A remote, central monitoring system for remotely and centrally monitoring a plurality of game machines, comprising:

• a common central monitoring apparatus;
• and
• a plurality of game machines located in a plurality of places, the plurality of game machines being remotely and centrally monitored by the common central monitoring apparatus,
• wherein each of the plurality of game machines is capable of starting a game by inserting a payment object, and comprises:
• a payment-object-insertion detector which detects insertion of a payment object,
• a payment-object counter which counts the number of times insertion of a payment object is detected,
• a free switch which starts the game without inserting a payment object,
• a situation-of-use information incorporating device which incorporates predetermined situation-of-use information of each of the game machines, the situation-of-use information including at least one of payment-object-insertion detected number information of the payment-object-insertion detector of the game machine, count value information of the payment-object counter, switching-on information of the free switch, and power on/off information of each of the game machine,
• a data storage device which stores the incorporated situation-of-use information, and
• a communication device which sends the information stored in the data storage device to the common central monitoring apparatus.