Wiki-backed facts include a permanent revision link and are not labelled as in-game verified.
Field notebook / 1962700Subnautica 2
Evidence Guide

Crafting record · Wiki-backed

Big Sub Key Item

This record reproduces structured recipe facts from a permanent revision of the official, community-maintained Subnautica 2 Wiki. It does not copy the Wiki article text.

Big Sub Key Item image from the Subnautica 2 Wiki
Wiki image · source file · CC BY-NC-SA 3.0 · not an in-game verification capture
Status
Wiki-backed
Revision
20770
Wiki updated
2026-08-15
Unlock
Not stated as default

Recipe

Fabricator

IngredientAmount
Axum Bacterial Culture2
Graphene Ingot1

Evidence boundary

What this status means

The recipe is backed by the linked Wiki revision. It has not yet been independently confirmed with an in-game capture and exact build number.

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Frequently asked questions

How do I craft Big Sub Key Item?

Use the Fabricator with Axum Bacterial Culture, Graphene Ingot.

What is Big Sub Key Item in Subnautica 2?

How to get Big Sub Key Item in Subnautica 2: crafting stations, ingredients, and where to find it.