Shrines of Depths are ancient structures found around the world of Teyvat. These Shrines of Depths sealed themselves off when the civilization that built them was lost. Players can use Shrines of Depths keys to unlock these shrines and open the Luxurious Chest found inside. There are 10 Shrines of Depths in each Teyvat region, thus requiring 10 keys for each region.
Players can obtain the keys required to open shrines by completing certain quests (specifically Archon Quests and World Quests), completing one-time Domains and as a reward from ascending specific Adventure Rank. Each region of Teyvat has its own type of key, and players must use its corresponding key to unlock the shrines.
Each shrine can only be unlocked once and the chest inside does not respawn.