Game device, game region expansion and contraction method, game program and information storage medium

摘要

To make it possible to freely establish a region by expanding or contracting various regions relating to a game with a simple operation. If a closed region for expansion or contraction (48) is moved to a position adjacent to an already established meadow (44) (expansion or contraction object region), and an expansion operation performed in a state where a fence of the closed region for expansion or contraction (48) and a fence of the meadow (44) overlap, the closed region for expansion or contraction (48) is added to the original meadow (44) to enlarge the area of the meadow (44). At this time, fences displayed overlapping on the meadow (44) and the closed region for expansion or contraction (48) are removed, and in their place remaining fences of the meadow (44) and the closed region for expansion or contraction (48) are linked and displayed as a fence of the meadow (44) having the newly expanded area.