Vault of the Ancient

The treasure vault of a great ancient king. A mysterious power causes the stored money to increase slightly each day.
Overview
Vault of the Ancient is one of the rewards available after invading King's Chamber and defeating the boss, Weaselord. It functions as a special storage building tied to that dungeon progression, and it is placed directly on the site where King's Chamber used to be.
The vault can hold up to 20,000 Pia through its building details, and its contents grow by 1% per day with compound interest. This makes it a long-term value storage option rather than a normal container.
- It cannot be moved once placed.
- It can be dismantled, but it cannot be built again afterward, so dismantling it is effectively permanent.
Official description
The treasure vault of a great ancient king. A mysterious power causes the stored money to increase slightly each day.