Styx

Styx is a Decepticon penal colony in the Generation 1 continuity family.

A small ice and snow-covered moon orbiting a vast gas giant is home to the Decepticon penal colony called Styx. Of all such installations it is the harshest and most brutal. Prisoners sent to Styx have a short life-expectancy and may be better off for that. The penal colony is said to be impregnable.

Gutcruncher is stationed there.

Fiction

IDW comic continuity

Spoiler warning: Plot details follow. Please give an expiry date ({{spoiler|(story)|DATE}}) - either the date of the next episode/issue in the series or 30 days after release, whichever is sooner

Hot Rod impregnates the impregnable prison (get your mind out of the gutter) with a virus that lets him sneek in and free his former comrade, Dealer.

Although Dealer seemed appreciative, he failed to give Hot Rod a "Domo arigato".

Trivia

In Greek mythology, Styx was a river which the dead journeyed down on the way to Hades.

From Teletraan I: The Transformers Wiki, a Wikia wiki.