What is the code for Marguerit's base in Below Zero?

2247. It's the one Below Zero code players still encounter — Marguerit speaks it over comms as you approach her base in a Seatruck. Note the keypad's middle row is reversed (1-2-3 / 6-5-4 / 7-8-9), so watch the button positions. In the final game the door also opens through story progression after you meet her at Delta Island.

What does code 4242 do in Below Zero?

Nothing useful. 4242 was an Early-Access placeholder on an alien facility forcefield (a 'Hitchhiker's Guide' 42 joke). Players who entered it confirmed there's nothing behind it; in the finished game that area is handled by Al-An and the Architect tablet terminals, not a typed code.

❄️ Below Zero · Lookup

Below Zero Door Codes

Q: Does Below Zero have door codes like the original Subnautica?

No. Unlike the original (which has permanent fixed Aurora codes), Below Zero replaced code-locked doors with story-gated doors and alien forcefields that Al-An deactivates for you. The codes people list — 4242, 6295, 1679 — are cut Early-Access leftovers and don't open anything useful in the final release.

Straight answer: Below Zero barely uses keypad codes at all. Unlike the original Subnautica's fixed Aurora codes, the four codes everyone lists are cut Early-Access leftovers. Only one (2247) is still spoken in the finished game. Here's what each was, and why the rest don't open anything.

Verified vs. the official Subnautica wiki (Cut Content) + final-release player reports · June 2026

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Every Code People Search — and What It Actually Does

All four are fixed (none are randomized per save), but only 2247 is something you'll genuinely use. The rest are documented on the wiki's Cut Content page as removed before launch.

Code	Opens	Location	Status
2247	Marguerit Maida's base door	Marguerit's base, Lilypad Islands area	✅ still works — Marguerit speaks it over comms as you approach in a Seatruck. Keypad quirk: the middle row is reversed (1-2-3 / 6-5-4 / 7-8-9).
4242	An alien facility forcefield	Architect/Precursor site (early game)	⚠ Cut — an Early-Access placeholder (a "42" joke). There's nothing behind it; the final game handles it via Al-An, not a code.
6295	Engine-room admin office	A crashed-ship wreck	⚠ Cut/obsolete — the door now opens through story progression, not a keypad.
1679	Research Base Omega door	Omega Lab	⚠ Cut/obsolete — access is story-gated in the finished game (forcefield handled by Al-An).

Why most guides are wrong here: a lot of lists still present 4242 / 6295 / 1679 as working door codes. They were real in Early Access, but Below Zero's 1.0 release replaced those code-locked doors with story gates and alien forcefields that Al-An deactivates for you. Entering them now does nothing useful: 2247 is the only one you'll actually use.

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Places That Have No Code (So Stop Looking)

Marguerit's greenhouse: no code. It unlocks after you sabotage the Communications Tower for her; she opens it.
Phi Robotics Center: no keypad code; you get in by exploring (the Spy Pengling helps), not by typing digits.
Delta Station / Delta Island, the Sanctuaries, Outpost Zero, the Vesper: story- and exploration-gated, no fixed player-entered codes.
Architect / Precursor doors use alien tablet terminals or are deactivated by Al-An, never a 4-digit pad.
Player-built keypads don't exist in Below Zero (that was only ever a forum request).

Below Zero Codes FAQ

What's the code for Marguerit's base?

2247, she speaks it over comms as you approach in a Seatruck. The keypad's middle row is reversed (1-2-3 / 6-5-4 / 7-8-9), so watch where you press.

Does Below Zero have door codes like the original?

No. The original has permanent fixed Aurora codes; Below Zero replaced code-locked doors with story gates and alien forcefields Al-An deactivates. The "codes" you'll see listed are cut Early-Access leftovers.

What does 4242 do?

Nothing useful: it was an Early-Access placeholder on an alien forcefield. There's nothing behind it in the finished game.

Below Zero Door Codes

Every Code People Search — and What It Actually Does

Places That Have No Code (So Stop Looking)

Below Zero Codes FAQ

More Subnautica guides