Flume and Ditching
Flume and Ditching is a Commerce Age technology that increases Villager Coin gathering from Mines and Mountain Monasteries by 10%. Asian civilizations research it at the Asian Market after Blanket Filters; Ethiopians can access it through an Indian Alliance at the listed 180 Influence cost.

Research profile
- Age
- Commerce Age
- Civilization
- Asians; Ethiopians
- Research location
- Asian Market
- Prerequisite
- Blanket Filters
- Research time
- 15 seconds
- Food cost
- 100
- Wood cost
- 100
- Effect
- Villager gather work rate for mine and Mountain Monastery +10%
Effect & research conditions
The Asian version costs 100 Food and 100 Wood and takes 15 seconds at the Asian Market after Blanket Filters. Ethiopians gain access through the Indian Alliance and research the technology for 180 Influence. Both routes improve Villager gathering from Mines and Mountain Monasteries by 10%; the effect does not apply to Food or Wood gathering.
Research condition
Available to Asians and Ethiopians from the Commerce Age. Research it at Asian Market. It requires Blanket Filters.
When to research
Use it when workers are already mining or gathering at Mountain Monasteries and can continue for a while. Asian players should complete Blanket Filters first; Ethiopians must secure the Indian Alliance and budget Influence. A short research time makes it convenient, but the bonus is idle if workers are on other resources.
A Coin-only gathering bonus
Villagers gather 10% faster from Mines and Mountain Monasteries. It does not improve Food or Wood rates, nor fishing from whales. Amalgamation is a comparable mine-gathering technology available through European or African Market access.
Asian and Ethiopian access differ
Asian civilizations research at the Asian Market for 100 Food and 100 Wood after Blanket Filters. Ethiopians can access the option through an Indian Alliance and pay 180 Influence. Confirm which route and cost apply before adding it to the build plan.