|Residents||Vortixx, Dark Hunters (both formerly)|
|Position||East of Zakaz|
Xia is an island in the Matoran Universe, and the homeland of the warrior-like Vortixx species. The island is heavily industrialized and serves as a massive producer of weapons. The residents of Xia keep all of their sea routes available and clear of any obstacles, and can be reached by sailing out of the southern gate of Metru Nui, then steering Northwest and following the dome.
Xia was created by the Great Beings during the construction of the Matoran Universe. It became the home of the Vortixx species, who provided goods to other races of the universe, such as Matoran. Over time, the Vortixx began to demand higher payments than Matoran could afford. To rectify the situation, Makuta Miserix sent Mutran, Icarax, and Icarax's aide Pridak to Xia to negotiate a lowering of the Xian's prices.
The negotiations lasted several days and only came to an end when Icarax lost his temper and destroyed part of the island. Cowed, the Vortixx agreed to lower their prices substantially. During their stay, Pridak made note of the island's potential. After the party left, Mutran realized that he had left his pet project, a sentient rock, in the center of the island. The rock took root and developed into "The Mountain", a landmark which later became an integral part of a Vortixx rite of passage.
During the reign of the League of Six Kingdoms, Pridak, now a Barraki, ruled the island of Xia, the northernmost island under his rule. Under his rule, Xia was organized into a massive weapons manufacturer, providing arms and war machines for the Leagues.
After the League was defeated by the Brotherhood of Makuta the island began to manufacture weapons for the Brotherhood, which soon became its largest customer. They also began to provide the Dark Hunters with weapons. In one transaction, the Vortixx received the Staff of Artakha in return for a payment of weapons made to the Hunters.
Makuta Kojol, the Makuta of Artakha, went to Xia after the Raid on Artakha to request a special armor-eating virus to be made into a weapon. He brought with him three other viruses, which he stashed away underneath the island. Tobduk, a member of the Order of Mata Nui, arranged for Kojol to be consumed by his own virus; his essence was later incinerated in a forge. The Vortixx claimed that they knew nothing about the incident, but the Brotherhood did not believe them. As a result, Makuta Teridax ordered part of the island destroyed to remind them to be more careful.
Recently, a rumor spread through Xia that the League of Six Kingdoms was about to return to power, causing production of all varieties of weapons to increase.
After Botar teleported Tahtorak to Xia, the Rahi went on a rampage in the center of the city. The Toa Nuva traveled to Xia in search of the Staff of Artakha, as instructed by the scroll they had found. Onua went digging to find it, while the others did what they could to help the besieged Vortixx. The Rahaga later arrived to protect the Vortixx from the Kanohi Dragon and the Tahtorak. The Toa Nuva witnessed Roodaka transform the Rahaga back into the Toa Hagah, and then left to find the Staff (which had been taken by Icarax) while the Toa Hagah remained to help the Vortixx.
A fight eventually broke out between the Tahtorak and the Kanohi Dragon, in which the Dragon was wounded enough for the Toa Hagah to bring it down. Toa Bomonga then used his Mask of Growth to wrestle Tahtorak to the ground. However, Toa Gaaki soon discovered a fleet of Dark Hunter ships approaching. Iruini teleported using his Kanohi Kualsi to one of the ships, where he met the Shadowed One, who had been hired by the Order of Mata Nui to prevent the Vortixx from providing any more weapons to the Brotherhood of Makuta. To do so, the Shadowed One planned to destroy the island and all of its inhabitants.
Helryx, the Order's leader, infuriated by the Shadowed One's intentions, came aboard his ship and threatened the Shadowed One, to ensure he would not destroy the island. She then hired the Toa Hagah to seek out Teridax, with Zaktan as a guide.
While searching the island, the Shadowed One discovered the viruses left there by Kojol, including a copy of the one Teridax used to overthrow Mata Nui. He was then approached by three of the Barraki, who knew of the virus and hoped to form an alliance with the Dark Hunters to overthrow the Great Spirit.
Later, all Vortixx in a kio of the Shadowed One's chamber were shattered into fragments, leaving no sign of a weapon or killer. The Shadowed One himself disappeared.
Xia is a very inhospitable realm. The island is completely environmentally devastated, with every inch of the island not taken up by the Mountain covered in factories, warehouses, docks, and other buildings. There are no houses in Xia; all inhabitants sleep near their posts, in case they are needed for an unexpected order. The only water source is a small, dirty stream that winds around the Mountain and passes through many factories on its course. The pollution is awful; the only clean air on the island is said to exist at the top of the Mountain.
Due to the pollution caused by heavy industry, only a few species of Rahi have managed to survive here. Half of Xia has been destroyed by a fight between two Rahi there, the Tahtorak and Kanohi Dragon.
The dome of Xia is lit by a series of Lightstones.
- The Vortixx are the main residents of Xia. They are also known as "Xians".
- "The Mountain" is a sentient mountain that all Vortixx must climb as a rite of passage.
- A number of Nynrah Ghosts
- The Dark Hunters relocated to Xia after their former headquarters was destroyed.
- A few species of Rahi, such as the Smoke Hawk.
The following items were manufactured on Xia by its inhabitants:
- Cordak Blaster
- Earth Claw
- Eccentric Rock
- Electro Chute Blade
- Energy Extraction Rifle
- Firework Revolver
- Griffin Gauntlet
- Hagah Plasma Cannon
- Impact Crystal Launcher
- Kanoka Blade
- Lightstone Rifle
- Energy Siphon Blade
- Nynrah Ghost Blaster
- Twilight Blade
- Visorak Battle Ram
- Vortixx Rhotuka Battle Axe
- The Mutran Chronicles (In a Flashback)
- Comic 24: Shadow Play (Not Mentioned by Name)
- BIONICLE Legends 4: Legacy of Evil (First Appearance)
- Comic 6: Web Comic (Mentioned Only)
- Toa Nuva Blog
- BIONICLE Legends 10: Swamp of Secrets (Mentioned Only)
- Dwellers In Darkness
- BIONICLE Legends 11: The Final Battle (Mentioned Only)
- Takanuva's Blog (Mentioned Only)
- Reign of Shadows
- BIONICLE: World
- BIONICLE: Encyclopedia Updated (Mentioned Only)
- BIONICLE: Makuta's Guide to the Universe
|Solis Magna||Spherus Magna (Aqua Magna | Bara Magna | Bota Magna) | Red Star|
|Metru Nui (Maze of Shadows) | Karzahni | Zakaz | Xia (The Mountain) | Northern Continent (Tren Krom Peninsula) | Artakha | Stelt | Odina | Southern Continent (Voya Nui) | Karda Nui | The Pit | Destral | Nynrah | Tren Krom's Island | Visorak | Daxia | Southern Islands (Artidax)|
|Pocket Dimensions||Field of Shadows | City of Silver|
|Alternate Universes||The Melding | Spherus Magna | Toa Empire | The Kingdom|
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