A GAME SYSTEM, A CONTROLLING METHOD OF THE GAME SYSTEM THEREOF, AND A NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM THEREOF

Provided is a game system wherein it is possible to diversify gameplay by diversifying the participation mode of player characters. Also provided are a method for controlling said game system, and a recording medium capable of being read by a computer device. A game system is provided with a communication module (42) for transmitting and receiving data between a computer operated by a first user and a second computer operated by a second user, who is participating in a game, such that the game is advanced in synchronization, wherein the communication module (42) is configured to synchronize the game between the computer operated by the first user and the second computer operated by the second user when the game advancement states of the first user and the second user, who is operating a player character that is different from the player character operated by the first user, are within a predetermined period before a predetermined stage begins.