A new Star Wars Visual Guide confirms the ocean world seen at the end of The Acolyte—where Darth Plagueis was observing Qimir (the Stranger) and Osha—is canonically identified as Baldemnic.
Baldemnic first appeared in Star Wars Legends as the species of Darth Plagueis, a Muun homeworld who is known for its deep ties to Sith lore. Therefore, this confirmation builds a direct link between The Acolyte and Legends continuity, reinforcing theories that The Stranger (Qimir) was indeed trained by Darth Plagueis, aligning with fan speculation and expanded lore.
Read on to dive deep.
Star Wars finally reveals Darth Plagueis’ secret planet and confirms the famous theory, Here is how

Star Wars revealed Baldemnic as the ancestral planet of Plagueis, and this ties them to his legacy and ancient Sith influence. The planet's appearance confirms that the events at the end of The Acolyte take place on this legendary, dark-side stronghold. Since the Acolyte ended, all the Star Wars fans have speculated that Qimir was Plagueis' apprentice, and now can relax as the makers have confirmed the same.
The mysterious ocean planet where Qimir lives and where Darth Plagueis was seen lurking is heavily implied to be Bal’demnic. Its references can also be found in the visual guide to "an intelligent reptilian species" living far from the islands. This clearly nods to the Kon'me, the native Naldemnic species.
This planet has deep roots, especially in the 2012 novel "Darth Plagueis" by James Luceno. It was a key location where Plagueis discovered rare cortosis ore, and it played an important role in his rise to power. By incorporating these details into The Acolyte’s canon context, Lucasfilm is recanonizing key elements from the Darth Plagueis novel.
Here are some other details that add to the theory that Star Wars has confirmed
Some other interesting details which add to the information are that The Stranger’s fighting style mirrors Ahsoka Tano’s, which subtly reinforces his mysterious Sith-influenced training. This similarity could be visual or philosophical, offering a blend of offence rooted in personal ideology.
Fans were decoding this theory since the Acolytes' premiere because the ocean landscape matches its Legends depiction. In The Acolyte, Qimir uses a cortosis helmet and gauntlet, which explains how he was able to physically overpower multiple Jedi and why he chose this specific planet as his base. The planet is a perfect source of cortosis, a rare ore that can short-circuit lightsabers.
In Legends, Darth Plagueis killed his master, Darth Tenebrous, on Bal’demnic. Qimir is implied to be planning to overthrow Plagueis, so his hiding out on the same planet where Plagueis killed Tenebrous creates a poetic parallel. This also deepens the Sith tradition of betrayal, continuing the cycle of apprentice vs. master.