Earth
From Project Rebearth
Earth (clay) is one of the three primary resources in Project Rebearth and the backbone of construction in the Earth Biome. It is extracted from clay pits using Clay Cranes and is the key input for the Glassworks, which converts it into 
Glass. 
Earth is also used as a building material in the Earth Biome, where it replaces 
Wood and 
Stone as the primary construction resource.
Overview
[edit]The Claypit is the primary source of Earth. As a polygon building, its production rate scales with area: +0.01 Earth/m²/day in the Wood Biome and Stone Biome, and +0.04 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 
Tools (-0.1/day). The Improved Clay Crane roughly doubles these rates (+50/+20/+80 per day) but consumes significantly more Tools (-1/day).
The Foraging Hut produces a small amount of Earth (+1/day) in the Wood and Stone biomes, alongside 
Food and other basic resources. It does not produce Earth in the Earth biome.
In the Earth Biome, Earth is the primary construction material. Most buildings that cost Wood in the Wood biome or Stone in the Stone biome cost Earth instead. The Claypit is not available in the Arctic Biome.
Production
[edit]| Building | Wood | Stone | Earth | Arctic | Workers | Notes |
|---|---|---|---|---|---|---|
| Claypit | +0.01/m² | +0.01/m² | +0.04/m² | — | Varies | Polygon building; rate scales with area |
| Clay Crane | +20 | +10 | +30 | — | 5 | Child of Claypit; consumes Tools (-0.1/day)
|
| Improved Clay Crane | +50 | +20 | +80 | — | 5 | Upgraded Clay Crane; consumes Tools (-1/day)
|
| Foraging Hut | +1 | +1 | — | — | 1 | Also produces Food, Wood/ 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 Earth output. The Claypit is not available in the Arctic Biome.
Production Chains
[edit]Glass Chain
[edit]The Glassworks converts Earth into Glass at a rate of -50 Earth/day to +5 Glass/day (10 workers). Glass is required for constructing the University and Museum, and is consumed by the University at -5 Glass/day. This makes Earth an indirect prerequisite for 
Knowledge production.
Consumption
[edit]| Building | Rate | Notes |
|---|---|---|
| Glassworks | -50/day | Input for Glass production; also consumes Tools (-0.5/day)
|
The Glassworks is the only building that consumes Earth as an ongoing resource. It converts 50 Earth/day into 5 Glass/day, requiring a substantial and steady supply from Claypits and Clay Cranes.
Storage
[edit]| 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 ( Food, Wood, Stone, Earth)
|
Other Sources
[edit]- Trade can be used to buy and sell Earth on the Market (1,000 capacity) or Port (5,000 capacity).
- Expeditions yield 15 random basic resources ( Wood, Stone, Earth, or Glass) per 1,000 hectares explored.
- Celebration events can grant bonus Earth.
Affected By
[edit]| Effect | Source | Multiplier | Type |
|---|---|---|---|
| Goods production | Dubious Working Rules | ×1.2 | Choice |
| Worker Safety | ×0.8 | Choice | |
| All production | New Town Boost | ×2.0 | Automatic (4 days) |
| Great Federation | ×1.1 | Alliance type | |
| Science League | ×0.8 | Alliance type |
The goods production effect specifically targets Wood, Stone, and Earth production. The all production effect affects every production building in the settlement.
Changelog
[edit]February 7, 2026
- Balance The Iron Mine has been rebalanced: maximum daily production is now 100 / 60 / 40 ( Stone / Wood / Earth biomes). Production in the Wood Biome and Earth Biome is now feasible, though the Stone Biome remains most favourable.
