Tckallus

The Tckallus, also known as the Great Collapse, was an apocalyptic event that caused the downfall of Kiandros society and took away their status as the most powerful civilization in the universe. Brought on by the hand of their patron divine, the Allfather, the Kiandros homeworld was reduced a barren wasteland during a timespan of exactly 24 days and 13 hours; one hour off from what the prophecies’d foretold.

Understandably devastating for the Kiandros civilization, the Tckallus was felt galaxy-wide, as the off-world Kiandros troops hurrying home to save what remained of their planet and people caused an enormous power vacuum,

History
Before the Great Collapse happened, the Kiandros were already aware of the possibility of a similiar event wrecking their planet. The Allfather had sent ominous clues to his creations via omens and visions as far back as two centuries before the Collapse: the