NETWORK GAME SYSTEM, SERVER, FRAUDULENT ACT PREVENTING METHOD, FRAUDULENT ACT SENSING METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a network game system or the like capable of appropriately preventing a fraudulent act such as a bot (robot virus).

SOLUTION: A terminal managing part 202 manages characters or the like inside a virtual space operated by a terminal. An event generating part 203 generates a verification event in a game device for verifying a player's manual operation from a game progress in the game device. A determination part 204 determines whether the manual operation is conducted or not based on operation information of the terminal during the verification event. A game condition changing part 205 appropriately changes a game condition in the terminal based on a determination result of the determination part 204.

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