The vault you’re asking about appears to be part of the Umbral Sands update in RuneScape: Dragonwilds, where a new vault is tied to the Kalphite Queen at the end of the questline. The available info points to the vault being open after that boss encounter, but it doesn’t name a separate, unique “Kalphite Queen vault” in the source I found.

What the sources suggest

  • The Dragonwilds update notes say 3 new vaults were added in Umbral Sands, and the Kalphite Queen is at the end of the questline.
  • Player discussion describes reaching the end, fighting the Kalphite Queen, and then the vault opening afterward.
  • A recent video guide also frames the Kalphite Queen content as being in the new Dragonwilds Umbral Sands release.

Practical answer

If you’re trying to locate the vault itself, the best match from current public info is the Umbral Sands questline vault , not a separately named vault confirmed in the source material I found. If you mean a specific vault name from a guide or map, that name wasn’t explicit in the material I could verify.

Quick note

The phrasing in current discussion makes it sound like the boss encounter and vault unlock are connected , rather than the queen being the “final boss of a named vault” in the usual sense.

TL;DR: It looks like the Kalphite Queen is tied to the Umbral Sands questline vault , and the vault opens after that fight, but I couldn’t verify a distinct vault name from the sources available.