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anno-117-docs/docs/skills/drainage.md
2025-12-31 00:10:49 +01:00

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# Drainage
**Entity Type:** Skill
## Properties
| Field | Value |
|-------|-------|
| Category | Economic |
| Type | Discovery |
| Knowledge Cost | 32,000 |
## Description
Drainage is an Economic skill that enables the draining of Albion's swampy marshes to create solid, arable land. This skill is essential for expanding buildable and farmable territory in the wetland regions of Albion.
## Effects
Unlocks Infrastructure: **Drainage Channel and Sluice Gate**
Enables the draining of Albion's swampy marshes to create solid, arable land.
## Unlock Requirements
This is a Discovery-type skill, which makes up the majority of skills in the Anno 117 skill tree. To research it, you must first reach it via a research path. Some discoveries require additional conditions to unlock.
**Prerequisites:**
- Choose the Roman path in Albion
- Host Mercators in your realm
## Related Skills
Other skills in the Economic category:
- Albionic Research
- Aqua Arborica
- Untapped Soil
- Gobannus-Model Bellows
- Villa Retinue
- Paved Roads
- Better Bellows
- Beaver Bother
- Blind Faith
- Blood of Terra
- Depotism
- Depots
- The Flight of Birds
- Beneath Bedrock
- Deep Depots
- Cyclopedic Research
- Duct Irrigation
- Firmer Foundations
- Fish Markets
- Healthy Competition
- Abyssal Invocation
- Well-Ordered Warehouses
- Pier-to-Pier Trading
- Seaport Specification
- Hurried Horrea
- Raising Sluices
- Honeyed Arbour
- Hushing
- Quays
- Trading Post Improvements
- Warehouse Refinement
- Warehouse Organisation
- Latin Research
- Albionic Loyalists
- Mackerel Hauling
- Metallurgical Research
- Monumental Research
- Wetland Research
- Sewing Circles
- Replanting
- Phlogistic Research
- Albionic Pillars
- Harbourmastery
- Safe Havens
- Harbour Grandmastery
- Reservoirs
- Marsh Services
- Ulex & Agogae
- Vino Veritas
- Water Conservation
- Woodland Rebirth
- Extra Horse Power
## Source
- [anno.land - Drainage](https://anno.land/en/anno-117-skills/drainage/)