The pit
Layers
The pit is twelve layers deep. Each one has its own air, liquids, plants, loot and dangers. On layers 1 to 9, falling out of the bottom takes you to the next.
Gravel lands
Layer 1, 13 to 19 °C
Deeper gravel lands
Layer 2, 12 to 21 °C
Dried desert
Layer 3, 13 to 33 °C
Wasteland
Layer 4, -20 to 39 °C
Overgrown depths
Layer 5, 18 to 31 °C
Frozen chasm
Layer 6, -33 to -24 °C
Fungal pools
Layer 7, 14 to 23 °C
Crystalline hollow
Layer 8, 17 to 21 °C
Geothermal vents
Layer 9, 35 to 43 °C
WHERE WE MUST REACH
Layer 10, 15 °C
CRIMSON ASCENT
Layer 11, 16 to 23 °C
A lab, somewhere...
Layer 12, 20 °C
Layer modifiers
Some layers start with a modifier such as Foggy, Flooded or Solar-struck.