Where to Find Limestone in Subnautica: Below Zero
Limestone is likeliest in Twisty Bridges (about 1,124 spawns per new game there). Most modelled spawns lie between -492 m and 4 m (negative is below sea level), and the files place no fixed spot for it: every one is rolled per new game.
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.
Where to find Limestone: areas ranked
Top 14 areas by expected spawns per new game, then the share of that area's spawn slots that can hold limestone.
- Expected spawns per game
- 3,203
- Fixed pins in the files
- 0
- Depth band (metres)
10%: -492 m · median: -122 m · 90%: 4 m
| Rank | Area | Share of area slots | Chance per eligible slot | Expected per game |
|---|---|---|---|---|
| 1 | Twisty Bridges | 12% | 12% | 1,124 |
| 2 | Lily Pads | 18% | 2.3% | 779 |
| 3 | Thermal Spires | 13% | 3.5% | 264 |
| 4 | Crystal Caverns | 7.7% | 3.3% | 195 |
| 5 | West Iceberg Zone | 13% | 2.7% | 178 |
| 6 | Arctic Spires | 71% | 2.3% | 148 |
| 7 | East Iceberg Zone | 6.1% | 2.2% | 124 |
| 8 | Sparse Arctic Zone | 5.9% | 3.1% | 85.1 |
| 9 | Glacial Bay | 49% | 0.9% | 73.1 |
| 10 | Glacial Basin | 62% | 2.3% | 73.0 |
| 11 | Glacial Pass | 13% | 7.2% | 70.3 |
| 12 | Fabricator Cavern | 3.0% | 5.9% | 47.8 |
| 13 | Arctic Kelp | 0.4% | 10% | 22.9 |
| 14 | Rocket Area Cave | 100% | 25% | 18.8 |
A model read from the game's code and data (EntitySlot spawner tables, 921,892 baked slots), not verified in a running game; it shows where a resource CAN spawn, not where it is in your save.
How Limestone appears
| Name in the game | Form | File id |
|---|---|---|
| Limestone chunk | Item you pick up | LimestoneChunk |
The files name no tool for this resource, so none is given here. Outcrop and item forms come from the spawn-table ids (Breakable, Drillable, or the item itself).
What Limestone is used in
No named recipe in the game files uses limestone as an ingredient.
All recipes are on the crafting page.
About Limestone in Subnautica: Below Zero
Limestone has 14 areas in the spawn model, led by Twisty Bridges with about 1,124 expected spawns per new game. In the model 10% of its spawns lie deeper than -492 m and 10% shallower than 4 m, with the median at -122 m (negative is below sea level). The game files place no fixed pin for it.
The chance model is built from the game's own spawn tables, so it shows where limestone can appear, not where it sits in your save. For the other ores see the resource chance table; blueprints that unlock recipes are on the blueprints page.
A model read from the game's code and data (EntitySlot spawner tables, 921,892 baked slots), not verified in a running game; it shows where a resource CAN spawn, not where it is in your save.