Uploaded May 2023 | Updated September 2026, 1 week ago

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A method of casually speedrunning Subnautica that should be accessible to most players, without requiring an eidetic memory. A reworked version of an earlier video, now for Subnautica 2.0, on Survival difficulty, and usable for Hardcore.
The run is divided into 17 “Dives”, each with a particular goal. The technique makes use of the Scanner Room, which is acquired early. This shows how to do it without the Ultra Capacity Tank, though gets the materials for it. While building the Stasis Rifle is not necessary, it would be highly advisable for Hardcore difficulty. Cheating is avoided as much as possible; the Captain’s Quarters Code is obtained legitimately, and while I tried to avoid multiple tanks, it was necessary at one point.

Opening — 0:00:00
Dive #1, Oxygen Tank — 0:02:00
Dive #1 end — 0:02:31
Dive #2, Starting Tools — 0:02:50
Dive #2 end — 0:06:21
Dive #3, Seaglide — 0:08:49
Dive #3 end — 0:12:30
Dive #4, Base materials — 0:14:09
Dive #4 end — 0:15:53
Dive #5, Base — 0:16:42
Dive #5 end — 0:20:14
Dive #6, Survival & Enforcement Platform — 0:20:27
Dive #6 end — 0:32:02
Dive #7, Deep Dive Equipment — 0:33:21
Dive #7 end — 0:39:08
Dive #8, Scanner Room & Base Upgrade Fragments — 0:43:18
Dive #8 end — 1:02:42
Dive #9, Base Upgrade materials — 1:05:24
Dive #9 end — 1:10:10
Dive #10, The Mushroom Forest — 1:14:14
Dive #10 end — 1:31:20
Dive #11, The Reefs — 1:34:06
Dive #11 end — 1:53:34
Dive #12, Lava Zone Dive materials — 1:55:29
Dive #12 end — 1:58:03
Dive #13, The Lava Zone — 2:02:09
Dive #13 end — 2:39:00
Dive #14, The Aurora — 2:40:49
Dive #14 end — 2:55:50
Dive #15, Neptune materials — 2:58:26
Interrupt: Dive #16, Cure & Stalker Teeth — 3:09:34
Dive #15 c.t.d. — 3:24:28
Dive #15 end — 3:33:16
Dive #17, The Neptune — 3:37:34

Highlights:
Aurora explosion — 0:59:34
Reaching the Disease Research Facility — 2:10:02
Sunbeam saved? — 3:19:42

Seeds:
Eye Stalk — 0:35:30; Fungal sample — 1:16:34; Ghost Weed — 1:25:00; Sea Crown — 2:33:27; Bulb Bush — 2:37:03

Other events:
Before Bulbo Tree eat #1 — 0:13:39
Before Bulbo Tree eat #2 / drink #1 — 0:26:10
Before Bulbo Tree drink #2 — 0:43:23
Lazer Cutter fragments #1 & #2 — 0:20:52
Cyclops Engine #1 — 0:25:53
Base Beacon — 1:10:36
Ion Cubes — 1:45:38
Captain’s Quarters Code — 2:21:54, 2:28:37
Primary Containment Facility — 2:29:46
Cyclops Engine #2 & #3 — 2:44:26
Stalker Teeth — 3:12:54

Beacons:
Lifepod 17 — 0:14:06
Lifepod 3 — 0:16:19
Degasi 250m base — 0:49:45
Lifepod 19 — 1:06:38, 1:12:20
Lifepod 12 — 1:16:15, 1:31:28
Lifepod 13 — 1:44:22, 1:53:17
Degasi 500m base — 1:50:41
Lifepod 2 — 1:55:48