Borderlands 4 (BL4): Vault Entrance Locations & Interactive Tracking Guide

Vault Entrances are the gateways to the hidden Primordial Vaults, the most challenging dungeons in Borderlands 4. These endgame instances are packed with elite mobs and culminate in a massive Boss fight.

There are only three Primordial Vaults in the game, with one located in each major region:

• Vault of Inceptus
• Vault of Radix
• Vault of Origo

Completing a Vault dungeon for the first time rewards you with a permanent Jet Pack, drastically changing how you explore Kairos. Like other encounters, Vault bosses are farmable. You can use Moxxi's Big Encore vending machines to pay for a boss respawn and farm for legendary gear.

Unfortunately, you cannot simply walk into a Primordial Vault. The entrance is sealed until you meet specific requirements:

• You must find 3 Vault Fragments hidden within the same region as the Vault.
• Once all three fragments are in your inventory, the game will reveal the general area of the entrance.
• These are "dungeon" style activities. Make sure your build is optimized before entering, as the difficulty spike is significant.

Locating the three fragments required to open the door is often harder than the dungeon itself, but we've got you covered, because our interactive BL4 game maps cover everything you need to achieve 100% completion.