Earth Biome
From Project Rebearth
The Earth Biome is one of four biomes in Project Rebearth. It covers arid, grassland, and dry regions of the world, where 
Earth is the dominant resource. Settlements in the Earth biome benefit from exceptionally low 
Wood upkeep on housing and excel at 
Glass production through abundant Earth supply.
Overview
The Earth biome is associated with dry and open landscapes. Earth serves as both the primary resource and the construction material for all buildings in this biome.
Construction
Buildings in the Earth biome cost Earth as their primary resource. For example, a Shack costs 35 Earth, a Cabin costs 80 Earth, and a Town Hall costs 1,000 Earth plus 500 
Stone, 10 
Tools, and 20 Glass.
Housing Upkeep
The Earth biome has a significant advantage in housing upkeep since Wood consumption is roughly one-tenth of other biomes. A Shack consumes only -0.1 Wood per day compared to -1.0 in the Wood Biome and Stone Biome, or -2.0 in the Arctic Biome. 
Food consumption remains the same across all biomes.
| Housing | Wood/day (Earth) |
Wood/day (Wood/Stone) |
Food/day
|
|---|---|---|---|
| Shack | -0.1 | -1.0 | -1.5 |
| Hut | -0.15 | -1.5 | -2.0 |
| Cabin | -0.2 | -2.0 | -2.5 |
| House | -0.25 | -2.5 | -4.0 |
| Residence | -0.3 | -3.0 | -5.0 |
| Villa | -0.35 | -3.5 | -6.0 |
Resource Production
The Earth biome has distinct production characteristics compared to other biomes:
- Earth - The Claypit produces 0.04 Earth per m² per day, four times the rate of Wood and Stone biomes (0.01). The Clay Crane produces 30 Earth per day, the highest of any biome.
- Wood - The Woodcutter produces only 5 Wood per day, the lowest of all biomes (compared to 30 in Wood and 15 in Stone).
- Stone - The Quarry produces 0.01 Stone per m² per day, matching the Wood biome but far below the Stone biome's 0.03 rate.
- Food - The Foraging Hut produces 3 Food, 1 Wood, and 2 Stone per day.
- Glass - The Glassworks consumes 50 Earth per day to produce 5 Glass, making the Earth biome ideal for glass production due to its abundant Earth supply.
Strategy
The Earth biome's low Wood upkeep makes it the most efficient biome for large-scale housing, allowing settlements to support large populations with minimal Wood consumption. However, its low Wood production means players must invest in trade or multiple Woodcutters to sustain building construction and Tools production.
While the Woodcutter produces only 5 Wood per day in the Earth biome, the Saw produces 20 Wood per day regardless of biome, making it an effective way to supplement Wood output. The trade-off is that the Saw consumes 0.5 Tools per day.
The biome's strength in Earth production makes it a natural hub for Glass manufacturing via the Glassworks, which can be traded to other settlements. Combined with the Claypit and Clay Crane, Earth biome settlements can generate large surpluses of Earth for export.