Humans

The Last Caretaker Oath Token: How to Get It from The Fourth Chamber

Short answer: The Oath Token is a reusable memory that raises all ten of a human’s attributes. It sits in The Fourth Chamber, a hidden underwater cave about 150 m down at 109, -33. To open it, scan the statue in the cave at the top of each of the three Spires first. The Continuity Token is a different item that opens the Transfer Gate.

Where the chamber is, how deep, the three Spires and what the token does are cross-checked (B) in the wiki, Steam threads and videos. Single-source details, including how much it adds, are marked C.

Last Updated: October 24, 2026

Game version: Early Access, Update 6 (October 19, 2026); The Fourth Chamber was added in Update 5, evidence from June to October 2026

What the Oath Token Does

What is the Oath Token?

The Oath Token is a memory item. Put it in a Lazarus Pod while a human grows and it raises every one of the ten psychological attributes, not just one or two like most memories.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: Oath Token (revision 7428) · Steam discussion: growing a human with the Oath Token (June 27, 2026) · Steam discussion: help with finding memories (July 2026)

How much it adds is not settled: the wiki lists +50 to each attribute, while one player on Steam says +25. We have not seen the item screen ourselves.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Community wiki: Oath Token (revision 7428) · Steam discussion: help with finding memories (July 2026)

The wiki’s copy of the item text says it slows the growth down so the human has more time to become whole.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Community wiki: Oath Token (revision 7428)

See also: human recipes · Lazarus calculator

Is the Oath Token reusable?

Yes. Players in three separate Steam threads say the Oath Token is not used up: one grew an Existential Chancellor and then a Colonel of Humanity with the same token, and another found theirs still in the Lazarus Pod afterwards.

Cross-checked (B) · Checked 2026-10-24 · Sources: Steam discussion: growing a human with the Oath Token (June 27, 2026) · Steam discussion: help with finding memories (July 2026) · Steam discussion: the Anna Echo (October 20, 2026)

Why did my human get the wrong profession?

Because it raises every attribute, a human can end up matching several professions, and the game picks one of them. One player says tracking the profession you want, adding exactly the food and memories it needs and never letting power or water drop gives the right result every time.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Steam discussion: growing a human with the Oath Token (June 27, 2026)

Where to Find the Oath Token

Where is the Oath Token?

In The Fourth Chamber, a hidden underwater cave that Update 5 added, at map coordinates about 109, -33. The Oath Token is in the loot inside.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: The Forth Chamber (revision 6874) · SubiPilot video, October 18, 2026: how to get the Oath Token (spire coordinates in the chapters, the chamber from 8:06) · Sgt DangerCow video, July 1, 2026: Update 5 guide, The Fourth Chamber from 14:47 · Steam discussion: The Fourth Chamber (June 2026)

No navigation beacon reveals it, so it never shows on your map by itself. You have to go to the coordinates.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: The Forth Chamber (revision 6874) · Steam discussion: The Fourth Chamber (June 2026)

How deep is The Fourth Chamber?

The cave is about 150 m below the surface, so check your Pressure level, batteries and healing before you go down.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: The Forth Chamber (revision 6874)

The wiki says the entrance is at about 120 m, on top of an underwater plateau, with Red Cocoons just inside, and that sharks and Night Crawlers roam the water around it.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Community wiki: The Forth Chamber (revision 6874)

What else is in The Fourth Chamber?

Four samples are inside: 522 Hands Among the Animals, 527 What the Water Gave, 531 Among Larger Bodies and 537 What Could Feed and Wound.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: The Forth Chamber (revision 6874)

How to Open The Fourth Chamber

The Fourth Chamber is a secret quest: nothing in your quest log points to it.

Which statues do you scan?

First scan a statue at each of the three Spires: the Spire of Command (20, 46), the Spire of Industry (81, -94) and the Spire of Exodus (183, -38).

Cross-checked (B) · Checked 2026-10-24 · Sources: Steam discussion: the Fourth Chamber puzzle (August 2026) · SubiPilot video, October 18, 2026: how to get the Oath Token (spire coordinates in the chapters, the chamber from 8:06)

Each Spire has a large statue on its peak and a small cave just below it whose mouth is blocked by rocks. Blow the boulder up to get in; the wiki used two Large Grenades at the Spire of Industry.

Cross-checked (B) · Checked 2026-10-24 · Sources: Community wiki: The Spire of Industry (revision 6757) · Community wiki: The Spire of Exodus (revision 6907) · Steam discussion: the Fourth Chamber puzzle (August 2026)

The three statues are Augustus of Prima Porta (Spire of Command), Vulcan, God of the Forge (Spire of Industry) and Moses (Spire of Exodus). Scanning each one unlocks it to build, and you place all three inside The Fourth Chamber.

Cross-checked (B) · Checked 2026-10-24 · Sources: SubiPilot video, October 18, 2026: how to get the Oath Token (spire coordinates in the chapters, the chamber from 8:06)

What do you do inside the chamber?

One player says the order matters: Augustus on the left, Moses in the middle, Vulcan on the right. You also need 15 Gold and a canister of electricity to power the door.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: SubiPilot video, October 18, 2026: how to get the Oath Token (spire coordinates in the chapters, the chamber from 8:06)

Each cave also has a map on the wall. One player explains that the red lines on the three maps cross at the chamber’s coordinates.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: SubiPilot video, October 18, 2026: how to get the Oath Token (spire coordinates in the chapters, the chamber from 8:06) · Community wiki: The Spire of Industry (revision 6757)

How do you get to the top of a Spire?

Landing the Salvage Gyro on a Spire is hard, the Spire of Exodus most of all. Players hover above the top, cut the engine and jump out, or build stairs up the rock, and they bring four or five petrol cans and repair materials for the crashes. Scan the statues with the scan tool, not the Photo Drone.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Steam discussion: the Fourth Chamber puzzle (August 2026)

North Bastion and the Continuity Token

What does the Oath Token do in North Bastion?

Since Update 6, take the Oath Token to Anna’s hologram in North Bastion once you have finished the story there, and you get a second artifact, the Anna Echo. The hologram itself stays in North Bastion.

Cross-checked (B) · Checked 2026-10-24 · Sources: Steam discussion: the Anna Echo (October 20, 2026) · Steam discussion: a North Bastion question (October 21, 2026)

One player calls the Anna Echo reusable, like the Oath Token; another is still asking whether it is used up when you grow a human with it.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: Steam discussion: a North Bastion question (October 21, 2026) · Steam discussion: the Anna Echo (October 20, 2026)

Is the Continuity Token the same thing?

The Continuity Token is a different item from Update 6’s Project Crossing quest at the Lazarus Complex. The quest panel reads "Investigate the sealed PROJECT CROSSING room", then "Scan the Continuity Token". The token sits on a pedestal in the middle of that room, and the scan prompt says to hold the scan key.

Cross-checked (B) · Checked 2026-10-24 · Sources: StormkilGaming: We now have a teleporter!! (Update 6 beta, October 9, 2026), the scan at 2:05 and the console at 2:52 to 2:59 · Steam discussion: how to find the token (October 19, 2026, release day)

In one beta stream the build menu lists the Continuity Token as a quest item that needs 4 Quantum Crystals and 2 Wh of electricity and takes 36 seconds to make. Only that one channel shows the recipe so far.

Player reports, not yet verified (C) · Checked 2026-10-24 · Sources: SubiPilot: same video, the Continuity Token in the build menu at 5:12