This article is about the Sparse Reef. You may be looking for the Deep Sparse Reef.

Biodiversity in this region is unusually low. Cause unknown.


― PDA, Dialogue


The Sparse Reef is a biome located southwest of Lifepod 5, bordering one of the Grassy Plateaus, the Blood Kelp Zone (trench), the Floating Island, the Sea Treader's Path and the Grand Reef. As its name implies, this area is very sparse and is home to a few types of small fauna and flora.

It also houses its own cave system, the Deep Sparse Reef.


The Sparse Reef is composed of relatively flat areas covered by green mounds, scattered with Table Coral, as well as large fissures where most of the bioluminescent flora inhabit, notably the Eye Stalks.

There are also spire-like structures found along the border of the Sparse Reef next to the Grassy Plateaus, under the Floating Island and near the Grand Reef. Found within these spires is a small entrance to the Grand Reef Caves.

The dangers in the Sparse Reef are Bleeders and Tiger Plants, which are found in the deeper parts of the biome.

Spoiler alert: The following section contains story related material.

An Alien Vent Entrance Point and a Sanctuary Cache are found in the Deep Sparse Reef.




  • The voice of Donald Trump saying "China"[1] is featured in the soundtrack of the Sparse Reef. Listen closely to the song above at 1:18 and 1:04.


  1. Audio artist Simon "kamakazi" Chylinski tweeted about this in January 2016.

Start a Discussion Discussions about Sparse Reef

  • where is the Sparse reef "Castle," as i often hear it called?

    2 messages
    • i dont spend much time in the sparse (mostly because i'm scared of it eek dropoffs), and ive seen a castle-like structure in pictures tha...
    • If you enter the sparse reef through the grassy plateaus you’ll find the an area with spires, which should be what your talking about.
  • Why does there say there is a Sparse Reef wreck

    8 messages
    • techically the safest biome is the cove tree, the only dangerous thing is deep shroom, although they only harm you after you harm them. A...
    • Howardohyea wrote:techically the safest biome is the cove tree, the only dangerous thing is deep shroom, although they only harm you after ...
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