Ancient Key is a quest item in Genshin Impact. Guide includes how to get, map & location, how to use, Aqueous Tidemarks, Liliacruces Forum, Institute of Natural Philosophy, & more.
Table of Contents
What Is Ancient Key?
Quest Item
Ancient Key is an important item that can be obtained at the Liliacruces Forum during the Aqueous Tidemarks quest. This is used to open the path to the Institute of Natural Philosophy.
How To Get Ancient Key?
Start Aqueous Tidemarks Quest
Talk To Virgil At The Court Of Fontaine
| Map | Location |
|---|---|
 |  |
You cannot get the Ancient Key without progressing with the Aqueous Tidemarks quest.
Aqueous Tidemarks Quest GuideHow To Use Ancient Key?
Open Underwater Gate
Interact with the mechanism to use the Ancient Key and open the gate to proceed with the Aqueous Tidemarks quest.
Fontaine Related Articles
Map & Puzzle Related
Fontaine Domains
Artifact Domains
| Domain | Key Drops |
|---|---|
 Denouement Of Sin | |
Talent Book Domains
| Domain | Key Drops |
|---|---|
 Pale Forgotten Glory | |
Weapon Ascension Material Domains
| Domain | Key Drops |
|---|---|
 Echoes of the Deep Tides | |
