Level 38 - Malachor V

Malachor V is a planet featured in the game Star Wars: Knights of the Old Republic II: The Sith Lords and mentioned in Star Wars: Knights of the Old Republic. It is the planet where the conflict of the Mandalorian War concluded. During the conclusion of the Mandalorian War the Jedi Exile ordered Bao-dur and his droid companion to activate the Mass Shadow Generator which even the MSG's inventor Bao-dur would later reveal that he didn't know what it was capable of.

The destruction of the Republic fleet would have eliminated the possible threat of an insurrection against Revan since he knew of the less-than-loyal soldiers in the army. The result was the conclusion of life on the planet except for the Storm Beasts as featured in KotOR II. The planet also spews toxic gasses from the ground.

Malachor V is also home to the Trayus Academy, where Darth Traya, Darth Sion, and Darth Nihilus were all trained. Malachor V, due to the exceptional loss of force-connected life has phenomenal dark side residue keeping it together

 

Source: Wikipedia