Thyferra was a planet located in the Inner Rim Territories, lying on the Rimma Trade Route. It was the homeworld of the Vratix species, who invented the substance bacta and eventually became addicted to it. When humans who settled on the planet discovered the bacta, they exploited the species' addiction and sold the substance to the public. The barley known as Vratixia renanicus was also cultivated on the planet. The First Order military regime later gained control of Thyferra, and following the regime's defeat at the Battle of Exegol in 35 ABY, the planet was in open rebellion against it.
Thyferra was a terrestrial planet situated in the Inner Rim Territories within grid square L-14 of the Standard Galactic Grid. The Rimma Trade Route connected it to the astronomical objects Yag'Dhul and Ghorman.
The Vratixia renanicus barley was cultivated on Thyferra.
By the time of the High Republic Era, the substance bacta was newly invented by Thyferra's native Vratix species. They became so addicted to it that they were compelled to produce more. Humans eventually arrived and settled on the planet, discovering bacta's healing properties. The settlers took advantage of the Vratix's addiction to bacta by encouraging them to produce more of it, selling the substance to the general public. While the settlers profited greatly, the natives became a slave labor force. By 232 BBY, a type of barley named Vratixia renanicus was cultivated on Thyferra and was a key ingredient in bacta. The natives of Thyferra created the Bacta Slush beverage at one point to remedy internal maladies.
By 4 ABY, the Bacta Cartel operated on the world. The forces of the First Order, formed from remnants of the Galactic Empire after their defeat in 5 ABY, eventually took control of Thyferra. In 34 ABY, the Halcyon, Chandrila Star Line's Star Cruiser, passed by Thyferra during a cruise from the Core Worlds' Chandrila system to the Outer Rim Territories. A partial map of the galaxy indicating the planet's position was displayed on several screens aboard the starship. At some point between 34 ABY and 35 ABY, Artiodac chef Strono Tuggs undertook a culinary tour of the galaxy. He consumed a Bacta Slush and included a recipe for the beverage, documenting its taste and origin, in his cookbook, The Ultimate Cookbook, published in 35 ABY. Following the First Order's defeat at the Battle of Exegol of 35 ABY, many worlds entered an open rebellion against the regime. One such uprising took place on Thyferra after similar revolts on the prominent worlds of Coruscant and Corellia had occurred.
Thyferra was home to the insectoid Vratix, who were exploited to sell bacta by humans who later settled there. One human who hailed from the planet, Arvel Crynyd, was a Z-95 Headhunter pilot for the Bacta Cartel before joining the Rebel Alliance.
Thyferra was first mentioned in the current Star Wars canon on a map featured in the fifty-second issue of De Agostini's Star Wars: Build the Millennium Falcon magazine, published around December 30, 2015. The planet made its first in-universe appearance via a map viewable in Star Wars: Galactic Starcruiser, an immersive roleplaying experience at Walt Disney World Resort in Florida that opened to the public on March 1, 2022.
In the Star Wars Legends continuity, Thyferra was first mentioned in the roleplaying game article "The Business of Bacta," written by Michael Kogge and published in the third issue of the Star Wars Adventure Journal magazine in August 1994. The planet subsequently made its first appearance in X-Wing: The Bacta War, a 1997 novel written by Michael A. Stackpole as the fourth entry in the Star Wars: X-Wing novel series.
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