Koppa Mining Site in Subnautica: Below Zero
Koppa Mining Site: 98 to 328 m deep. 8,852 baked spawn slots, 114 pins inside.
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
- 98 m to 328 m
- Median slot
- 263 m
- Area
- no class on the grid
- Pins inside
- 114
This area has no class on the game's biome grid (caves and sub-areas live in the spawner tables only), so the map has no border to focus; the dots are its pins.
What spawns in Koppa Mining Site
Ranked by expected spawns per new game over the area's 8,852 baked slots. “Share” is how much of the whole map's supply of that thing falls here.
Resources
Creatures
| Creature | Slots that can hold it | Expected per game | Share of all its spawns | |
|---|---|---|---|---|
| 4,527 | 126 | 37% | ||
| 1,075 | 110 | 3% | ||
| 3,452 | 76 | 12% |
Spawn numbers are a model read from the game's spawner tables and 921,892 baked slots, not verified in a running game.
Pins inside Koppa Mining Site
114 map pins lie in this area. Open a layer to see all of its pins on the map.
Creatures placed here by hand: Rock Puncher (10).
| Place | Kind | Depth | Position | Map |
|---|---|---|---|---|
| Transitions | 233 m | x -327, z -760 | Show on map | |
| Transitions | 154 m | x -327, z -760 | Show on map | |
| Transitions | 154 m | x -260, z -826 | Show on map | |
| Alterra mining sites | 231 m | x -245, z -740 | Show on map |
Other biomes
About Koppa Mining Site
Koppa Mining Site reaches 98 to 328 m deep by the heights of its 8,852 baked slots. The resource with the highest expected count here is Silver (about 37 per game), the creature is Rockgrub (about 126).
A pin belongs to the area of the nearest baked slot within 30 m (3-D, so a cave counts for its own area); a pin with no slot nearby takes the biome-map class above it (2-D). Placement of pins, depth and the spawn ranking are read from the game files; the spawn numbers are a model and have not been verified in a running game.
Depth is metres below sea level, read from slot heights. Coordinates are the game's world metres, x east and z north.