Type
Equipment recipe
Starter mobility recipe
Subnautica 2 Basic Fins Recipe
Equipment recipe
Basic Fins are the first movement upgrade that changes the feel of the starter region. Make them before stretching into Water, Air Bladder practice, Portable Storage, or the Silver route.
Reviewed .
Station
Fabricator
Route
Rubber and Fiber starter loop
Status
Ready route
Blueprint facts
Use this row set when you need the station, unlock condition, output, and downstream planning without losing the route context.
Category
Starter mobility
Produces
Basic Fins
Crafted at
Lifepod Fabricator
Unlock requirement
Make Rubber from Lucifer Rotsac and Fiber from Fibrous Pulp, then open the Basic Fins row.
Scan requirement
None
Used in
Shorter oxygen loops, starter material returns, early scan routes, Silver route prep
Recipe or unlock row
2 Rubber + 2 Fiber → 1 Basic Fins at the Fabricator
Route order
Follow the unlock order before spending materials on lower-priority extras.
Step 1
Craft Survival Multitool first
Use it to make plant material gathering practical before opening the Fins row.
Step 2
Make Rubber
Turn Lucifer Rotsac into Rubber at the Fabricator.
Step 3
Make Fiber
Turn Fibrous Pulp into Fiber as the second material step.
Step 4
Craft and equip Basic Fins
Craft the gear, then equip it from inventory so the speed benefit is active.
What it unlocks
Starter mobility
Faster material loops
Safer early scans
Silver route readiness
Player decisions
Raw plant budget
4 Lucifer Rotsacs + 4 Fibrous Pulp.
With an Air Bladder
6 Lucifer Rotsacs + 4 Fibrous Pulp + 2 Titanium for both crafts.
After crafting
Check the equipment slot so the Fins are equipped before leaving.
Questions people ask
How much Rubber do Basic Fins need?
Two Rubber, made from four Lucifer Rotsacs. Add two Fiber, made from four Fibrous Pulp.
Do Fins increase my oxygen capacity?
They provide a swimming speed boost. A tank upgrade changes your air supply; check both equipment slots before a longer trip.
Related recipe and blueprint pages
Survival Multitool
The starter tool that supports the plant material loop.
Lucifer Rotsac
Rubber source for the Basic Fins route.
Fiber
Fibrous Pulp conversion step for Fins.
First Hour guide
Starter route for Survival Multitool, Basic Fins, Water, Air Bladder, Portable Storage, and Basic Battery.
Items & Materials
Search the item index for raw materials, tool pages, item renders, and route links.
Colonist Bunker 1 Silver route
Follow-up path for Silver, BioBed, Repair Tool progress, and Standard Air Tank.