⚠️ Eco v0.14 is coming — the next major update reworks upgrade modules, so some of these numbers will change. They reflect the current version. What’s changing →
  • Simpler tiers: the 1–4 tiered upgrades become a single Basic / Advanced / Modern upgrade each.
  • Permanent upgrades: a module placed in a workstation is permanent — no more swapping lower tiers out as you progress.
  • Power transitions: a module can change a station’s power type/draw (e.g. a Modern upgrade moves a sawmill from mechanical to electrical power).
  • Talent-integrated: modules now use the same bonus/talent system — any talent benefit (power, labor cost, recipe unlocks) can come from a module.
  • Cheaper to upgrade: with the multi-tier parts gone, fully upgrading a workstation costs significantly less.

We’ll update this calculator shortly after the update releases.

HomeItemsArrastra

Arrastra

Arrastra

WorldObject

A primitive rock mill of dragged boulders.

Weight5000 gMax stack1SkillBasic Engineering Lv 1StationWorkbench

Notes

The Arrastra is a primitive rock mill used as a crafting table to produce various materials, including crushed ores, coal, and gravel. As a usable world object, it draws 10 W of power and provides a power grid radius of 5. Because it is categorized as a housing object, placing and incorporating it into a residence can contribute to the room's overall value.

Notes are AI-generated and may be imprecise.

⚙ Craft calculator — adjust for your modules, skill & talents
Upgrade modules

Ingredients

IngredientQtyType
Wood5category
Rock30category
Wood Board10category
Mill Stone1item

Crafting

Labor300 calories
Craft time5 min
Throughput12 Arrastra / hour (base)

As a placed object

RoomIndustrialSize4×3×3
Viewer
Operating
Power10 W (observed)Labor30โ€“70 cal
Function
Power gridMechanical, 5 m radius

Accepts upgrade modules

Crafted here

Total raw to craft this

Steps2Total labor420 calTotal time5.4 min

Approximate โ€” category ingredients and any production cycles are counted as raw.

Categories

Obtained from

See also