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Nidhogg III is a planet in or near the Koprulu Sector. It was discovered by the small mining company Edgar and Sons, which found it an abundant source of vespene gas and minerals. However, due to an information leak, numerous mining companies rushed to the planet, starting a never ending-war to control the resources.
It is likely that the planet is named after Níðhöggr, a dragon from Norse mythology who eats the World Tree, Yggdrasill.
1999-04-16. Easy Money. StarCraft Compendium Map Archives.