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Diablo is a multiplayer map featured in StarCraft. It supports up to five players. There is one natural expansion for each player in addition to a large central expansion.
The map is likely named after the game franchise of the same name. The map's title could also be in reference to the shape it is in, a demonic pentagram.
StarCraft Enlarged Map Images. StarCraft Compendium. Accessed on 2011-06-11