Network game system, game machine, game machine control method, and information storage medium

A game machine, which is included in a network game system which includes a plurality of game machines and provides a game played by players that respectively correspond to the plurality of game machines by operating at least one of the plurality of game machines as a server, comprising:

• data exchange time measurement result acquiring means for acquiring, for each of the plurality of game machines, a measurement result of a time required for exchanging predetermined data between the game machine and another one of the plurality of game machines;
• and
• server determining means for determining at least one of the plurality of game machines as the game machine to be operated as the server based on the measurement result acquired by the data exchange time measurement result acquiring means.

A control method for a game machine included in a network game system which includes a plurality of game machines and provides a game played by players that respectively correspond to the plurality of game machines by operating at least one of the plurality of game machines as a server, comprising:

• a data exchange time measurement result acquiring step of acquiring, for each of the plurality of game machines, a measurement result of a time required for exchanging predetermined data between the game machine and another one of the plurality of game machines;
• and
• a server determining step of determining at least one of the plurality of game machines as the game machine to be operated as the server based on the measurement result acquired by the data exchange time measurement result acquiring step.