Subnautica: All Biomes List Guide and Walkthrough

Subnautica is a game that is based underwater and as you know below the sea there is a vast world to explore. Hence to make the gaming distinct the SubNautica map has been classified into various biomes. And these biomes are unique and contain materials exclusive to them.

The article here will describe all these biomes in brief. We won’t go into maximum detail because we will be covering them one by one with explorations. We will see what biomes are the most dangerous biomes in Subnautica. The order of the biomes in Subnautica is as shown above.

Biomes 1: Blood Kelp Zone Subnautica

It is a surface biome. The depth of this biome is found to range from 150m to 675m. Its temperature range is below 15 C.

blood kelp zone subnautica

It is sought as a unique biome in Subnautica. It is because they are named after the giant bloodlines found in them. These bloodlines carry Blood oil postulates down their stem. It is situated southwest of Lifepod 5. Part of the reason I have taken this first is that the first task that we generally do is of finding Lifepod 5. And Lifepod 5 lies in the Blood Kelp Zone.

The blood kelp zone is divided into two regions and the regions are separated by Lifepod 5. The region southwest of Lifepod 5 is named Blood Kelp Trench and the region north of Lifepod 5 is termed as Northern Blood Kelp zone.

The infamous Ghost Leviathan is primarily found here. For the people who are interested in the coordinates, They are -639 -335 1187.

bulb zone subnautica

Biomes 2: Bulb Zone Subnautica

It is a unique biome that borders the North-eastern Mushroom Forest, the crater edge, the crash zone, and the Mountains. The depth of the biome ranges from 140-to 480 meters.

The temperature range is similar to the blood kelp zone which is around 14 C. The Bulb Zone is characterized by small crevices and overhangs in a sandy dune-like area.

The bulb zone is named after the famous bulb bush found there. A radiation suit is generally required because half of its area is under the subject of radiation. Various data boxes and destroyed Lifepod are found in this biome.

It also homes some very dangerous fauna namely Bonesharks and Appeals.  There are various corals found there too. The coordinates for it are 1251 -215 606.

Crag Field Subnautica

Biomes 3: Crag Field Subnautica

Crag Field is located between the Great Reef, Crash Zone, and Kelp Forest and borders one of the Grassy Plateaus. The Crater edge is located to the south of the Crag Field.

The crag field biome’s depth ranges from 125 meters to 400 meters. Unlike the other biomes seen its temperature range is a little bit high ranging around 14 to 20 C.

Crag Field is a resource-rich biome and there are no major threats lurking except for that occasional Mesmer visit.

It is rich in metal reserves so you will easily find all the available metals there. The tiger plant is its specialty. The coordinates for Crag Field are 52.0 -309.3 -1433.3.

Crash Zone Subnautica

Biomes 4: Crash Zone Subnautica

The crash zone is named the crash zone because the aurora crashed in this zone.  It is characterized by rocky slopes and deep trenches predominantly blanketed by sand.

This biome is the most dangerous one and my god does this scare the shit out of gamers because of the presence of 11 Reaper Leviathans.  This is a particularly hotter biome compared to the other ones with temperatures ranging from 23 to 25 C.

The crash zone is currently the largest biome in Subnautica. The coordinates for the biome are 725 -53 163. The crash zone is divided into 4 parts.

The main crash zones are,

  • Crash Zone trench
  • Crash Zone Mesas
  • Crash Zone Spit

Crater Edge Subnautica

Biomes 5: Crater Edge Subnautica

This is also called the Dead Zone. It is approximately 8192 meters deep. Adult ghost Leviathans live in the crater edge. And they spawn every 30 seconds of a player being present there. It means that one leviathan will spawn every 30 seconds that you are there and it will chase you until you get out of there.

Dunes Subnautica

Biomes 6: Dunes Subnautica

This biome’s depth ranges from 65 to 400 meters. It is located towards the west of Lifepod 5 (Note that Lifepod 5 is often the mark to locate different biomes).

This biome shares its borders with Grassy Plateaus, Sea Treader’s Path, one of the Safe Shallows, both of the Blood Kelp Zones, the North-western Mushroom Forest, and the Crater Edge.

There are 3 wrecks found in the dunes which are discussed in individual articles. The temperature ranges around 14 C. These wrecks are the primary point of interest in these biomes.

The dangers in these biomes involve the Reaper Leviathan. These Leviathans patrol around the Gasopods. Rubies are found in this biome as well but we need to watch out for the Reaper.

The coordinates for the biome are -1511 -336 294.  The biome ID is dunes.

Grand Reef Subnautica

Biomes 7: Grand Reef Subnautica

The depth of this biome ranges from 150 to 480 meters. Rubies and Gel sacks are the primary point of attraction and barring them it has a very limited amount of flora and fauna. It houses various thermal vents and this makes it similar to the Dunes biome.

This biome is located by keeping the floating island as the landmark. The temperature ranges similarly at 14 C.

The danger lurks around in the form of two massive Sea-trader Leviathans and ghost leviathans.

Grassy plateaus subnautica

Biomes 8: Grassy Plateaus Subnautica

The second shallowest of the biomes and the one that is key for early and mid-game progression. It contains the 2 broken LifePods and some of the best wrecks for blueprints. Exploring the wreck behind Lifepod 17 is an article covering one such wreck.

It falls under the category of Surface biomes. The defining characteristic of this biome is Blood grass. The whole of the biome is covered with it giving it a rusty red look. The main danger from this biome is from Sand sharks and Tiger Plants as early gamers fall prey to them easily.

The temperature ranges from 19 to 27 C. This is a biome that contains a variety of items that will be useful for the game’s progression. Therefore, explore it thoroughly.

Kelp Forest subnautica

Biomes 9: Kelp Forest Subnautica

Also, one of the shallowest biomes in-game. The kelp forest is one of the most productive and dynamic ecosystems on Planet 4546B.  The depth ranges from 24 to 27 C. The biomes have an abundance in Creepvine and are often associated with them.

As you go deep in this biome the biome will transition into the Dense Kelp Forest zone.  There’s not much of a threat from any fauna in this biome all you will find is edible fauna in here.

The coordinates for this biome are -306 -51 -57.

Mountains subnautica

Biomes 10: Mountains Subnautica

The mountains are a vast biome that as the name suggests contains a series of mountainous terrain. Its depth ranges from 0 to 500 meters.

To locate it we will use Lifepod 5 again. It is located northeast of Lifepod 5. It borders the Bulb Zone, Mushroom Forests, the Underwater Islands, one of the Kelp Forests, and the Crater Edge.

The coordinates of the biome are 1090-265 1215.

It is a very large biome. It is also one of the trickier biomes as it contains seven Reaper Leviathans. Therefore, extreme care has to be taken. This biome also extends above sea level.

There are 5 data boxes found in this biome and a lot of scannable items too.

Safe shallows Subnautica

Biomes 11: Safe shallows Subnautica

It is one of the safest(probably the safest) biome in-game and the shallowest biome in-game. Well, the name pretty much already gave it away.

The point of interest is the wrecks. There are two large wrecks and a number of small wrecks to be explored in this biome.  It is a beginner’s guide, to be honest.

It provides you with your first diving experiences and there’s plenty of harvestable flora and fauna to be found. Still, new players should be beware of the Gasopods and Crashfish.

The temperature is pretty much close to normal ranging up to 32 C. Plus it is aesthetically pleasing as well with the presence of coral reefs.

Sparse Reef subnautica

Biomes 12: Sparse Reef Subnautica

It is also located by keeping Lifepod 5 as the landmark. It is located southwest of Lifepod 5. The depth ranges from 40-310 meters. There is not much flora or fauna to be found as the name(sparse) suggests.

There are three data boxes found from the one large wreck available in this biome. The main source of danger in this biome is the scattered Tiger plants that are found deep. The coordinates of the biome are -684 -221 -686.

Underwater Island subnautica

Biomes 13: Underwater Island Subnautica

Probably the most unique biome in the entire game. The floating island is literally what the name suggests and they are a thing of beauty.

Quartz is common on both the top and walls of the island, with occasional diamonds. Sandstone outcrops and shale outcrops are found at the bottom of most islands.

Uraninite and large resource deposits of silver are beneath lava geysers. Large gold deposits are rarely found near the cliffs surrounding the biome, alongside limestone outcrops and spadefish.

The source of danger in this biome Is the abundance of Bonesharks so be wary of them. They don’t generally don’t do a lot of damage to you but they strike the seamoth time and again causing the vehicle to explode.

There are five databoxes to be found in the large wreck present there. There are hydrothermal geysers to be found as well while the lava geysers can be found at the ocean bed.

If you have any questions about this article, please leave them in the comments section. We are always happy to help.

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