Subterra

Subterranea ("Subterra") is a semi-public deep mineshaft with a hub at -1000 nodes. Making extensive use of Technic, the hub operates machines such as a foundry, uranium refinery, and ice maker at low and medium voltages.
The hub features:
- Subterra Market, both a metal exchange that trades ingots and a general supplies store.
- Vending Machine, a Digilines machine with a graphical user interface to sell food in exchange for Grass.
- Foundry, a public Technic machine for bulk processing ore that yields two ingots per ore.
- Charging Station, a public battery station that charges electronics
- Ice Maker, generates Ice and simplifies crafts involving Bucket of Water.
- Residential, a sector containing condominium units with shared Protection.
- Zoo

Occupied units in Subterra Residential.
Blue Shroom Caverns

Blue Shroom Caverns is a public mining area at a depth of -2500 nodes and the native habitat of the Blue Illumishroom.
There is a rest area marked with a Simple Bed in an Item Frame where players can set a respawn point. The same area is also where the Crypt is located. If a deceased player is found in the caverns, there is a chance lost items will be retrieved and stored in the Crypt.
Safe Zones
Safe zones are well-lit patches of protected areas that have a similar pattern to the main road. Lava Titans may spawn in Blue Shroom Caverns. As their lava conjuration attacks do not work in protected areas, players caught off guard can retreat to a safe zone.
Emerald Shelf
Emerald Shelf is a mossy cave realm at a depth of -3900 nodes, known for its Glow Emerald stalagmites.
The hub has two Simple Beds and a small market that sells mining supples.
Emerald Shielf is connected by teleporter to Spawn.
See Also
Subterra is connected by teleporter to the following locations: