Seat system and seat experience device

A seat system comprising:

• a seat including a seat body, and a sensor provided at the seat body and configured to acquire information for detection of a motion of an occupant seated on the seat body;
• a terminal device configured to acquire the information from the sensor;
• and
• a server capable of communicating with the terminal device,
• wherein the terminal device is configured to:
• execute a game program using the sensor, based on the information, and
• acquire an execution result corresponding to the occupant for a game provided by execution of the game program and played by the occupant,
• wherein the server is configured to:
• generate integrated data by integrating execution results of the game acquired from another terminal device, and
• compute a reference value for the execution results of the game based on the integrated data,
• wherein the terminal device or the server is configured to:
• assign a difficulty level of the game for the terminal device based on the execution result corresponding to the occupant and the reference value, and
• wherein the terminal device is configured to reflect the difficulty level on the game during execution of the game program.