Katharsis was a form of gambling seen on the planet Telos IV during the reign of Xanatos. It involved betting on a series of very violent and extremely dangerous sporting events. The winners of the challenges would go on into others, even more rigorous than the first few. Many competitors died, and the game did not support medical facilities. The final event would comprise of three winners, who would be involved in the most dangerous event of all. Only one of the competitors could win, and almost all of the time, the other two men would be gravely injured, at the very least. Obi-Wan Kenobi and Qui-Gon Jinn exposed a plot by UniFy and Offworld Mining Corporation, which involved pre-selecting the daily Katharsis winner and forcing that person to donate half of their earnings to the corporation.