The game influenced strongly the companys next successful RTS, the futuristic StarCraft (1998) in gameplay, and in attention to personality and storyline. The fog of war completely hides all territory which the player has not explored: terrain that has been explored is always visible, but enemy units remain visible only so long as they stay within a friendly units visual radius. The majority of the display screen shows the part of the territory on which the player is currently operating, and, using the small minimap, the player can select another location to view and operate on. Players gain access to more advanced units upon construction of tech buildings and research. The edition, released in 1999, provided Blizzards online gaming service, and replaced the MS-DOS version with a Windows one.
