Editing Earth

{{MessageBox|text=This article is about the '''Earth resource''' (clay). You might be looking for the [[Earth Biome]].}}
{{Resource
| name          = Earth
| image         = earth.png
| category      = Raw Materials
| produced_by   = [[Claypit]], [[Clay Crane]], [[Improved Clay Crane]], [[Foraging Hut]]
| obtained_from = [[Trade]], [[Expeditions]], [[Celebration]]s
| consumed_by   = [[Glassworks]], construction
| construction  = Yes, primary material in [[Earth Biome]]
| stored_in     = [[Center]], [[Square]], [[Warehouse]], [[Foraging Hut]]
| chain         = [[Claypit]] / [[Clay Crane]] → {{Icon|Earth}} → [[Glassworks]] → {{Icon|Glass}}
| affected_by   = Goods production, all production [[Effects]]
}}
'''Earth''' (clay) is one of the three primary [[Resources|resources]] in [[Main Page|Project Rebearth]] and the backbone of construction in the [[Earth Biome]]. It is extracted from [[Claypit|clay pits]] using [[Clay Crane|Clay Cranes]] and is the key input for the [[Glassworks]], which converts it into {{Icon|Glass}}. {{Icon|Earth}} is also used as a building material in the [[Earth Biome]], where it replaces {{Icon|Wood}} and {{Icon|Stone}} as the primary construction resource.

== Overview ==
The [[Claypit]] is the primary source of {{Icon|Earth}}. As a polygon building, its production rate scales with area: +0.01 {{Icon|Earth}}/m²/day in the [[Wood Biome]] and [[Stone Biome]], and +0.04 {{Icon|Earth}}/m²/day in the [[Earth Biome]]. The [[Clay Crane]] is placed within a Claypit to boost output, producing +20/day in Wood, +10/day in Stone, and +30/day in Earth biome, at the cost of {{Icon|Tools}} (-0.1/day). The [[Improved Clay Crane]] roughly doubles these rates (+50/+20/+80 per day) but consumes significantly more {{Icon|Tools}} (-1/day).

The [[Foraging Hut]] produces a small amount of {{Icon|Earth}} (+1/day) in the Wood and Stone biomes, alongside {{Icon|Food}} and other basic resources. It does not produce {{Icon|Earth}} in the Earth biome.

In the [[Earth Biome]], {{Icon|Earth}} is the primary construction material. Most buildings that cost {{Icon|Wood}} in the Wood biome or {{Icon|Stone}} in the Stone biome cost {{Icon|Earth}} instead. The Claypit is not available in the [[Arctic Biome]].

== Production ==
{| class="wikitable"
|-
! Building !! [[Wood Biome|Wood]] !! [[Stone Biome|Stone]] !! [[Earth Biome|Earth]] !! [[Arctic Biome|Arctic]] !! Workers !! Notes
|-
| [[Claypit]] || +{{BuildingData|name=claypit|data=rate|biome=wood|resource=earth}}/m² || +{{BuildingData|name=claypit|data=rate|biome=stone|resource=earth}}/m² || +{{BuildingData|name=claypit|data=rate|biome=earth|resource=earth}}/m² || — || Varies || Polygon building; rate scales with area
|-
| [[Clay Crane]] || +{{BuildingData|name=clay_crane|data=rate|biome=wood|resource=earth}} || +{{BuildingData|name=clay_crane|data=rate|biome=stone|resource=earth}} || +{{BuildingData|name=clay_crane|data=rate|biome=earth|resource=earth}} || — || 5 || Child of [[Claypit]]; consumes {{Icon|Tools}} ({{BuildingData|name=clay_crane|data=rate|biome=wood|resource=tools}}/day)
|-
| [[Improved Clay Crane]] || +{{BuildingData|name=clay_crane_upgraded|data=rate|biome=wood|resource=earth}} || +{{BuildingData|name=clay_crane_upgraded|data=rate|biome=stone|resource=earth}} || +{{BuildingData|name=clay_crane_upgraded|data=rate|biome=earth|resource=earth}} || — || 5 || Upgraded [[Clay Crane]]; consumes {{Icon|Tools}} ({{BuildingData|name=clay_crane_upgraded|data=rate|biome=wood|resource=tools}}/day)
|-
| [[Foraging Hut]] || +{{BuildingData|name=foraging_hut|data=rate|biome=wood|resource=earth}} || +{{BuildingData|name=foraging_hut|data=rate|biome=stone|resource=earth}} || — || — || 1 || Also produces {{Icon|Food}}, {{Icon|Wood}}/{{Icon|Stone}}
|}

The [[Claypit]] has the highest output in the [[Earth Biome]] (+0.04/m²/day), four times the rate in the [[Wood Biome]] and [[Stone Biome]] (+0.01/m²/day). The [[Clay Crane]] and [[Improved Clay Crane]] are placed inside a Claypit (within 20 meters) and provide substantial flat-rate production, making them essential for scaling {{Icon|Earth}} output. The Claypit is not available in the [[Arctic Biome]].

== Production Chains ==
=== Glass Chain ===
{{Chain|Earth|Glassworks|Glass|title=Glass Chain}}

The [[Glassworks]] converts {{Icon|Earth}} into {{Icon|Glass}} at a rate of -50 {{Icon|Earth}}/day to +5 {{Icon|Glass}}/day (10 workers). {{Icon|Glass}} is required for constructing the [[University]] and [[Museum]], and is consumed by the [[University]] at -5 {{Icon|Glass}}/day. This makes {{Icon|Earth}} an indirect prerequisite for {{Icon|Knowledge}} production.

== Consumption ==
{| class="wikitable"
|-
! Building !! Rate !! Notes
|-
| [[Glassworks]] || {{BuildingData|name=glassworks|data=rate|resource=earth}}/day || Input for {{Icon|Glass}} production; also consumes {{Icon|Tools}} ({{BuildingData|name=glassworks|data=rate|resource=tools}}/day)
|}

The [[Glassworks]] is the only building that consumes {{Icon|Earth}} as an ongoing resource. It converts 50 {{Icon|Earth}}/day into 5 {{Icon|Glass}}/day, requiring a substantial and steady supply from [[Claypit|Claypits]] and [[Clay Crane|Clay Cranes]].

== Storage ==
{| class="wikitable"
|-
! Building !! Volume
|-
| [[Center]] || 5,000 (shared with all resources)
|-
| [[Square]] || 10,000 (shared with all resources)
|-
| [[Warehouse]] || 5,000 (shared with all resources)
|-
| [[Foraging Hut]] || 100 ({{Icon|Food}}, {{Icon|Wood}}, {{Icon|Stone}}, {{Icon|Earth}})
|}

== Other Sources ==
* '''[[Trade]]''' can be used to buy and sell {{Icon|Earth}} on the [[Market]] (1,000 capacity) or [[Port]] (5,000 capacity).
* '''[[Expeditions]]''' yield 15 random basic resources ({{Icon|Wood}}, {{Icon|Stone}}, {{Icon|Earth}}, or {{Icon|Glass}}) per 1,000 hectares explored.
* '''[[Celebration]]''' events can grant bonus {{Icon|Earth}}.

== Affected By ==
{| class="wikitable"
|-
! Effect !! Source !! Multiplier !! Type
|-
| rowspan="2" | Goods production || [[Dubious Working Rules]] || ×1.2 || [[Choices|Choice]]
|-
| [[Worker Safety]] || ×0.8 || [[Choices|Choice]]
|-
| rowspan="3" | All production || [[New Town Boost]] || ×2.0 || Automatic (4 days)
|-
| [[Great Federation]] || ×1.1 || [[Alliances|Alliance type]]
|-
| [[Science League]] || ×0.8 || [[Alliances|Alliance type]]
|}

The goods production effect specifically targets {{Icon|Wood}}, {{Icon|Stone}}, and {{Icon|Earth}} production. The all production effect affects every production building in the settlement.

== Changelog ==
{{Changelog}}

== See also ==
* {{Icon|Wood}}
* {{Icon|Stone}}
* {{Icon|Glass}}
* {{Icon|Tools}}
* [[Earth Biome]]
* [[Resources]]
* [[Effects]]

{{Navbox}}

[[Category:Resources]]