Marblemelon Plant in Subnautica: Below Zero
A small alien fruit - edible. Placed at 30 to 31 m above sea level.
Data: Subnautica: Below Zero game files (build of 12 Aug 2025), read and drawn by PinDrop. (c) Unknown Worlds Entertainment. PinDrop is fan-made and not affiliated with Unknown Worlds Entertainment.

- Depth
- +31 m to +30 m
- Spawns per game
- none rolled
- Placed pins
- 5
- Gives
- Marblemelon seed
“This plant collects water from the air rather than relying on its root system, and produces large, fleshy fruits which are both edible, and have atypically high water content.”
Assessment: Edible - High water content
Where it is placed
5 marblemelon plant objects sit at fixed coordinates in the game files; these are exact.
| Area | Placed | Depth | Position | Map |
|---|---|---|---|---|
| East Iceberg Zone | 1 | +30 m | x 987, z -896 | Show on map |
| East Iceberg Zone | 1 | +31 m | x 989, z -897 | Show on map |
| East Iceberg Zone | 1 | +30 m | x 990, z -896 | Show on map |
| East Iceberg Zone | 1 | +31 m | x 997, z -888 | Show on map |
| East Iceberg Zone | 1 | +31 m | x 998, z -886 | Show on map |
What it gives and what uses it
Harvest
Marblemelon seed, plus 3 more on the final cut (item table of the game).
Nearby
Marblemelon Plant is most often found in East Iceberg Zone, where these also spawn:
About the marblemelon plant
The files place 5 of them at fixed coordinates, 30 to 31 m above sea level. Picking it gives Marblemelon seed.
Placed pins are read as placed. Depths are metres below sea level.