🆕 Updated for Eco 14 — “Garbage & Recycling” — this server and these numbers now reflect the new version. What changed →
  • Byproducts: nearly every recipe now leaves waste behind, so recipe pages list byproducts alongside ingredients.
  • Garbage & recycling: waste sorts from mixed garbage down to pure materials, and can be recycled back into stock.
  • Pollution has four kinds: acid rain, chemical, soil and heavy mineral, each settling into the ground differently. Pollution guide →
  • Modules reworked: upgrades are now Basic / Advanced / Modern / Specialty, one per slot, driving the same bonus system as talents. Module guide →
  • Fresh water: machines need it — water drawn from the ocean has to be desalinated first.

The character calculator has been updated for these changes. Read the garbage & recycling guide →

Basalt

Basalt

A hard and heavy rock with some uses in construction. Basalt forms directly from lava erupted volcanically, making it an extrusive igneous rock. The basis of all bedrock in the oceans.

Weight7500 gMax stack20Carried on backResource pile

Notes

Basalt is a heavy, tier-5 igneous rock block that is mined from deep underground in the Tundra biome (65–75 meters). It is used in a wide range of construction and crafting recipes, including Ashlar Basalt, Crushed Basalt, and several early crafting stations like the Campfire and Carpentry Table. Because it is a high-tier rock requiring a strong pickaxe, basalt is a mid-game material — players should plan to mine it in bulk once they have the right tools, as it is also a key ingredient for advanced stonework and research papers.

Notes are AI-generated and may be imprecise.

As a block

Mining hardness5On miningdrops rubbleSolidWall
Mining

Hardness 5 is the minimum pickaxe tier that can mine this block.

Yields1× BasaltCalories/block20Durability/block1Cal / stack1000

Cost shown for a Modern Pickaxe at Mining level 0. Set your level / talents in the ⚙ Character panel to recompute. ≈ estimate.

Where it's found

From this server's world-generation settings.

Recycling & waste

Salvages into (per unit)

The same salvage value leaks out as garbage when this item is consumed in crafting.

How garbage, sorting & recycling work

Categories

Used in

Advanced Masonry Table
Arrastra
Campsite
Carpentry Table
Jaw Crusher
Masonry Table
Research Table
Stamp Mill
Tool Bench
Workbench

See also