The Environmental Effects Overhaul update for Going Medieval has reintroduced the possibility of underground farming and greenhouses through the addition of grated floors. These allow sunlight to pass through while preventing hail from damaging crops. This guide covers everything you need to know about building greenhouses, optimizing underground farms, and adjusting for the new temperature mechanics.

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Understanding the New Sunlight and Temperature Mechanics

• Grated Floors: Available in curated and metal varieties, these allow sunlight to penetrate underground structures.
• Sunlight Exposure:
  • 100% Sunlight: Direct outdoor farming.
  • 60-70% Sunlight: Greenhouses with grated roofs.
  • 30-40% Sunlight: Deep underground farming (two levels down).
• Temperature Regulation:
  • New Clay Braziers provide low, medium, and high heating to maintain plant growth.
  • Temperature control is critical for underground farms and greenhouses.

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Building an Underground Farm

Step 1: Digging the Farming Pit

• Choose a location near your settlement for easy access.
• Dig at least one level deep for optimal sunlight penetration.
• Deeper farms (two+ levels) will require more heat regulation.

Step 2: Preparing the Underground Farm Structure

• Ensure dirt or rocky ground remains in place for planting.
• Add stairs and tunnels to connect your farm to the main base.
• Use wooden beams for stability before laying grated floors.

Step 3: Installing the Grated Floors

• Start from supported areas to avoid collapses.
• Use wooden beams and dirt walls to maintain structure.
• Leave space for settlers to move and access crops.

Step 4: Heating and Climate Control

• Install clay braziers at corners for optimal heat distribution.
• Adjust heating levels based on external temperature.
• Monitor plant growth cycles to ensure consistent yields.

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Building a Greenhouse

Basic Greenhouse Design

1. Use dirt walls or wooden structures for insulation.
2. Install grated floors as the roof to allow sunlight.
3. Add heating sources (braziers or torches) to regulate temperature.
4. Place farms on fertile ground for better crop yields.
5. Avoid excessive walls, as they can block light.

Optimizing a Tree Greenhouse

• Trees require higher sunlight levels than regular crops.
• Incorporate windows to maximize sunlight penetration.
• Use paths and ladders for easy access to close/open windows during seasonal changes.

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Comparing Farming Setups

Setup	Sunlight Level	Pros	Cons
Open-Air Farming	100%	Fast growth, high yield	No protection from weather
Greenhouse (Grated Roof)	60-70%	Protects from hail, maintains heat	Slightly lower yields
Deep Underground Farm	30-40%	Full protection, controlled conditions	Lower crop yield

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Additional Farming Tips

• Use grated floors efficiently: Sunlight is crucial for plant yields.
• Plan heating wisely: Extreme cold will halt plant growth.
• Rotate crops seasonally: Avoid over-reliance on one food source.
• Store food properly: Keep harvests in cool underground cellars to prevent spoilage.

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Final Thoughts

Both underground farms and greenhouses offer unique benefits, and choosing the right setup depends on your settlement location, resources, and gameplay style. Greenhouses provide moderate sunlight and shelter, while underground farms prioritize temperature stability and protection.

With these mechanics back in the game, players can once again experiment with complex farming strategies for sustainable medieval settlements. Happy farming!