Birthplace of the Sith.
Korriban: Basic Information.
Allegiance: Sith Empire
Native Species: Pureblood Sith.
Region: Outer Rim.
Terrain: Red rocky mountains and dusty canyons make up most of Korribans surface.
Atmosphere: Cold and dry with breathable air.
Landmarks: The Sith Academy. Valley of the Dark Lords. Various Sith Tombs.
System Information: Korriban is the only planet in the Horuset System. This system also has two asteroid belts; The Korriba Scar and the Ashes of Korr.
Korriban has had a bloody and violent history long before the Jedi or Republic were involved. The History of this planet starts around 100,000BBY when red skinned beings, later to be known as the Sith evolved on its surface. They were quite barbaric as a people, keeping their planet in a state of almost constant war between its nations. Approximately 30,000BBY Korriban was invaded by a species known as the Killik. The Killik were an insectoid species with a hive mind and (at this time in history) were a superior race, but the Sith race native to Korriban managed to force the invaders off their planet. The Infinite Empire of the Rakata was the next recorded race to try and take over Korriban with the intention of using its population as slaves, as they did with many other planets. This was around the year 27,700BBY. The Sith survived this also and the only known significant artifact to show of the Rakata’s invasion is a Star Map. It was King Adas of the Sith that drove the Rakata from Korriban and in doing so his armies managed to secure several Rakata ships. King Adas died in his final confrontation with the Rakata and his people were thrown into chaos. Over the next three centuries the Sith used their Rakata space ships to colonize new planets including Ziost, Arbra and Tund. Korriban became a husk of its former self and is described as being a “graveyard world populated only by religious fanatics” at this time. Korriban was briefly known as Pesegam when it became a part of Xim’s Empire around the year 25,126BBY. It was part of this empire in name only though and when Xim’s Empire fell it had little effect on Korriban.
The Battle of Corbos on the mining planet of the same name lasted from approximately 7,003BBy to 6,900BBY. It brought the end of The Hundred Year Darkness (also known as The Second Great Schism) which was the catalyst that made Korriban a planet of historical importance once more. The Hundred Year Darkness was an internal conflict within the Jedi Order that involved a small number of Jedi who delved to deep into possible uses for the Force. Eventually these Dark Jedi were defeated on the planet Corbos, rounded up and exiled into what was uncharted space at that time. When they came out of hyperspace these Dark Jedi Exiles landed on Korriban and were considered gods by the native Sith. A Dark Jedi by the name of Ajunta Pall was the most powerful of the Exiles and became the first Dark Lord of the Sith. These new Force wielding masters sped up the technological evolution of Korriban and its inhabitants, raising them from tribal primitives in small huts to a powerful race with elaborate culture and architecture. Interbreeding between the Sith of this time and their Dark Jedi masters led to what we now know as the Sith Race. The period starting at 6,900BBY with the arival of the Dark Jedi is considered to be the Golden Age of the Sith. Korriban developed completely isolated from the rest of the galaxy for almost 2,000 years until 5,000BBY.
The end of the Golden Age of the Sith came with the death of the Dark Lord Marka Ragnos in 5,000BBY. Marka Ragnos was considered to be the most powerful Dark Lord of his time and his death left only two Sith Lords as contenders for his place as Dark Lord of the Sith. They were Ludo Kressh and Naga Sadow. To make a very long story short, Naga Sadow became Dark Lord of the Sith and ended up being the main protagonist of the Great Hyperspace War. At the end of which, Korriban was practically purged by the Republic. It was this event that sent the Sith Empire we face in Star Wars: The Old Republic to the planet of Dromund Kaas.
Korriban had a very checkered history from this point up to where The Old Republic gameplay starts, including visits from notable figures such as Darth Revan and Ulic Qel-Droma. The planet has even had interest from the Czerka Corporation. The important part to note here from an SW:TOR point of view is that Darth Malgus is the first Sith of the Empire the Republic faces now to return to Korriban. Missions for Sith Warriors and Inquisitors on Korriban will likely involve large story threads that follow the theme of a nation returning home. This will likely hopefully to the Imperial Agent too, but I wouldn’t count on it. From the game footage and artwork I have seen of Korriban it would seem that a large part of the gameplay of this planet will be focused around the Valley of the Dark Lords. This was Korribans main focused area for both KOTOR and KOTOR2 so Bioware had to include it in SW:TOR. The Valley of the Dark Lords has an amazing history and feel to it, and it is far to iconic to not be the focus of the planet. Not to mention the fact that Khem Val, the Inquisitors companion is in the Tomb of Naga Sadow. I am also thinking that we might see grave robbers in the Tombs of the Dark Lords, and probably a lot of Shyracks as they are native to Korriban, but also possibly the spirits of some long dead Sith Lords. Also I believe armor and weapons that belonged to notable figures from Korribans history will likely come to your character through quests here, which will likely be important to roleplayers. Time will tell.
I am definitely looking forward to seeing Korriban in Star Wars: The Old Republic above many other planets. Its rich history is full of bloody political conflict and its landscape and tombs are both majestic and foreboding.