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Phi Excavation Site

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The Phi Excavation Site is an Alterra installation in the Glacial Basin dedicated to researching the Frozen Leviathan. It serves as a key story location in Subnautica: Below Zero, revealing the fate of Samantha Ayou and offering the opportunity to cure the Kharaa Bacterium.

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Phi Excavation Site

PESInfobox

PropertyDetails
TypeAlterra Bases
BiomeGlacial Basin
DepthAbove sea level
Goto IDfrozencreature
Coordinates-1619 29 -763
Point of InterestFrozen Leviathan
MusicI Am Relieved It Is Still Frozen

The Phi Excavation Site is an Alterra installation set up to uncover and research the Frozen Leviathan. It is located in the western Glacial Basin, underneath a large mountain.

Description

The excavation site is a cavernous space that shows signs of a rock collapse, with loose rock ranging from small pebbles to large boulders scattered about the area. At the back of the cave is a massive wall of ice that has trapped the Frozen Leviathan inside.

Alterra had a strong presence here, having set up a catwalk in front of the ice wall, with the lower floor serving as a makeshift laboratory. An elevator leads up to a room that was cut into the ice, where the head of the creature can be observed up close. A similar tunnel can be found back on ground level, where one of the creature's claws was being observed.

A Prawn Suit, forklifts, and a large crane can be found here, having all been used to excavate the creature. A significant amount of Floodlights and Light Sticks can also be found here, illuminating the space.

Resources and Items

The following items and resources can be found at the site:

Story

Prior to Below Zero

At an unknown point in time after Alterra's arrival on Planet 4546B, the cave was discovered by Alterra employee Fred Lachance. Shortly afterwards, the cave was made off-limits to most employees, and was put under heavy surveillance, with Parvan Ivanov working as security.

Alterra showed extreme interest in the Kharaa Bacterium that had infected the creature, and sent Danielle Valenti and Vinh Pham to harvest samples and bring them back to Omega Lab for further testing.

When Samantha Ayou learned of what was going on at Omega Lab, she made plans to prevent Alterra from harvesting any more samples. Acting on her own, she attempted to cause a cave-in at the excavation site, but was interrupted by Parvan. It was upon Parvan's intervention that the cave entrance collapsed, killing both personnel.

Alexis Riedell was later sent to investigate the cause of the collapse, linking it to the sabotaging of Omega Lab.

During the Events of Below Zero

Following the death of her sister, Robin Ayou arrives on 4546B to learn more about the cause of Sam's death. Eventually, the trail of evidence leads her to the Phi Excavation Site, where she finds the site of Sam's death, as well as her necklace nearby. From here, Robin can either ignore the Frozen Leviathan's infection, or complete her sister's work and cure it. In order to do the latter, the player will need to find the Kharaa Antidote, which was hidden away by Sam.

Achievement

Finding the Cure Achievement

Finding the Cure

Use the antidote.

How to obtain: Eliminate the Kharaa Pustules on the Frozen Leviathan by using the Kharaa Antidote.

The mountain where the site is located The mountain where the site is located

Signs of a rock collapse at the entrance Signs of a rock collapse at the entrance

The rock pile that crushed Sam and Parvan The rock pile that crushed Sam and Parvan

Alexis's station Alexis's station

Parvan's observation post Parvan's observation post

Excavation equipment Excavation equipment

Various lab equipment Various lab equipment

The excavated foot The excavated foot

The excavated head The excavated head

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