Provided is a method for controlling a computer progressing a game played at the same time by a plurality of players divided on a plurality of maps, the method including the steps of allowing each of the plurality of players to select any one of the plurality of maps, progressing the game on maps selected respectively by the plurality of players in response to instructions from the plurality of players, and reflecting, in a display of a first map selected by a first player, game progress caused by a second player having selected a second map different from the first map.