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This article contains spoilers! Outer Wilds and Echoes of the Eye should be played with minimal spoilers, knowing too much will hinder the experience! Please play the game before reading any of this! |
The Subterranean Lake is a location on The Stranger, located inside of The Simulation. It is a shallow lake in which resides four points-of-interest, one of which being the Sealed Vault.
Features[]
Islands[]
The Subterranean Lake contains 4 islands, 3 of which containing the Forbidden Archives, and one holding the Sealed Vault and its lock mechanism. It can be accessed by sleeping at the Submerged Structure, falling off a raft in the loading zones, or completing a stealth sections that lead to the Forbidden Archives.
The Sealed Vault[]
The Sealed Vault
The Vault Seal Mechanism, requiring knowledge of the glitches in order to remove.
The Sealed Vault is the climax of Echoes of the Eye, and must be opened by reaching the three Forbidden Archives and learning their secrets. Inside, The Prisoner is sealed.
It can be opened by using the three glitches found in the Forbidden Archives, Jumping off a raft in a loading zone to access the Subterranean Lake, extinguishing one seal from there, dropping your artifact to put together a hidden pathway, extinguishing another seal at the end. And finally, dying near a campfire in order to get past the Alarm Bells and open the Vault.
Once you open the Sealed Vault, you will enter a candlelit room with a telescope looking onward at the ringed planet. After about 15 seconds, an elevator will rise and you can move it downward with your Artifact. At the bottom you will meet the Prisoner, who will show you the last missing Slide Reel using the Vision Torch. After viewing, they will hand you the Vision Torch and you can show the Prisoner the history of the solar system. They will exit the vault afterwards, and leave a farewell vision outside, before walking into the water and snuffing their artifact. This concludes Echoes of the Eye, and the player can follow the Prisoner into the water to end the DLC.
History[]
The Subterranean Lake was most likely added to The Simulation after the Prisoner's betrayal in order to contain them. There is no real history that can be documented, as there are no events that occur here without influence from The Protagonist.