Server device, control method for server device, game system, and computer-readable recording medium

A server device and the like that can make a whole game and SNS more active by promoting the movement of players between groups to enhance the mobility of game participants. A server device comprises: a controller configured to enable a first player belonging to a first group to transfer to a second group based on an operation by a second player belonging to the second group, wherein the controller is configured to associate compensation for the transfer with the transfer of the first player. The controller is configured to perform payment and receipt of compensation for the transfer between at least two out of the first player, the first group, and the second group when the first player transfers from the first group to the second group.