— In-game description
The Deep Cave increases the Guild Vault size by another 100 slots from the 50 obtained with the Stash and the 100 from the treasure trove, for a total of 250 slots. Can be accessed by all guild members, with permissions set by the member rank.
- This upgrade does not require any materials, only Aetherium, Favor and Gold.
- The Deep Cave is not listed in the guild rank permissions screen. It inherits the same permissions as the Treasure Trove.
- Guilds that unlocked the Deep Cave before the release of the Heart of Thorns expansion, have this upgrade automatically unlocked for free.