“As with Uldaman and Ulduar, Uldum houses one of only a few of the known titan constructions, the existence of which predates that of mortal life on Azeroth. For years historians have explored southern Kalimdor for a means of entry into this ancient titan land, searching for more evidence of Azeroth's origins. But the Cataclysm will change everything, for the facade behind which Uldum has been tucked for millennia will be ruptured, leaving powerful mysteries vulnerable to discovery by the bravest, smartest, or perhaps even most brutal explorers.”
— Cataclysm features: Halls of Origination
Uldum (pronounced: [uːl'duːm]), also known as the "Land of the Titans", is an ancient desert located on the southern coast of Kalimdor, surrounded by the Un'Goro Crater in the north, Tanaris in the east and Silithus in the northwest. It is the homeland of stone-cat people known as tol'vir and is rich with titan lore.
A superweapon is rumored to exist in Uldum which the Alliance, Horde and Deathwing's minions seek. There is no super weapon, however; Uldum is the weapon, intended to wipe out all life on Azeroth in case Algalon the Observer's Reply-Code Omega went through to the titans.
The region of Uldum was once a vast jungle, dotted with pristine lakes and waterfalls. During the ordering of Azeroth, Highkeeper Ra and his followers — the anubisaths, the tol'vir and the mogu — installed the Forge of Origination in Uldum. The Forge would regulate the rhythms of the earth and fortify the world-soul's form, but would also be able to completely reoriginate the planet in case of systemic corruption. After installing the Forge, Ra assigned some of the tol'vir and anubisaths to watch over the region, while he and the rest of his followers continued west to establish the prison of Ahn'Qiraj to house the defeated Old God C'Thun.
Centuries later, Ra was imprisoned by Lei Shen, the Thunder King, who used the Highkeeper's powers to become the first emperor of the mogu empire. Learning from Ra of the demise of the Pantheon, Lei Shen declared that he would carry on the work of the titans and led an army of his mogu warriors and Zandalari allies into Uldum, seeking to claim the Forge of Origination — believing it to hold the secrets of eternal life. The tol'vir knew they could not defeat the Thunder King and his armies in battle, and so instead turned to another tactic. While some of the tol'vir remained outside the fortress to hold off the invading armies, the ones inside activated the Forge. They knew that using the weapon to its full potential would wipe out all life on the planet, and so instead had configured it to only scour the nearby land. Waves of energy erupted from the Forge, bathing the surrounding lands in the powers of uncreation and instantly killing Lei Shen and his entire army; however, it also devastated the surrounding lands, turning Uldum into a barren desert. The surviving tol'vir then worked to ensure that no one would ever attempt to claim Uldum again, and shrouded the mountain passes leading into the region with magic, sealing the land off from the eyes of mortals. The illusion remained for many thousands of years, until the Cataclysm damaged the ancient titan device that separated Uldum from neighboring Tanaris.
Uldum is a research facility for the titans in their continuing efforts to enhance the biosphere of Azeroth. Specific information regarding their work as it relates to Uldum is unknown and can only be accessed with the Plates of Uldum.
Prospector Gunstan maintained a lonely vigil near the outside gates on behalf of the Explorers' League. Since then, he has been joined by a number of his fellow explorers, with the rival blood elven Reliquary setting up camp nearby.
The landscape of Uldum is predominately desert, with a large river surrounded by an oasis flowing through the center of the region, mostly populated by the tol'vir, with the largest settlement - the Lost City located on the river delta. The western part of Uldum consists of a large expanse of the wind-swept dunes with half-buried Tol'vir settlements and pyramids, caused by the recent transgressions of Al'Akir's air elemental minions. In the east lies a massive pyramid that houses the titan complex known as the Halls of Origination. The northwestern part is the location of the Obelisk of the Stars and The Gate of Unending Cycles connecting the region with Tanaris desert. The southern part of the region besides the river delta is mostly cliffs, with settlements held by the Neferset. The southwestern part is being held by an expedition led by Commander Schnottz. The Cataclysm also brought the Skywall towers into Uldum that serve as an entrance to the Al'Akir's domain - the elemental plane of air. Al'Akir sends his elemental minions to convince the Tol'vir to join his new liege Deathwing, even rewarding them with removal of the Curse of Flesh. Those who dared to oppose suffered dire consequences as exampled in the Orsis settlement.
The animals that live there are scorpids, hyenas, camels and more. Notable animals include the large scorpion himself, Madexx.
Where to start? Well, somebody would say all the way back to Warcraft I (aka Warcraft: Orcs & Humans or the First War), or maybe Warcraft II (aka Tides of Darkness or the Second War up to and including Wrath of the Lich King, Warcraft III is the best place to start. Also, this game then elicits more interesting questions. For instance, how Illidan Stormrage became so hated or where the Scourge started. You will learn all the history and geography of the Warcraft with our help and dedication.