Rice Trade
Rice Trade is the first Coin-gathering technology in the Asian Rice Paddy upgrade chain. Available in the Fortress Age after Rice Surplus, it increases Villager gathering from Estates, Coin Rice Paddies, Fields and Haciendas by 20% and also improves Hacienda automatic Coin income by 20%.

Research profile
- Age
- Fortress Age
- Civilization
- Asians
- Research location
- Rice Paddy
- Prerequisite
- Rice Surplus
- Research time
- 30 seconds
- Food cost
- 400
- Wood cost
- 400
- Effect
- Villager gather work rate for Estate, Rice Paddy (coin), Field (coin), and Hacienda (coin) +20%; Hacienda auto gather coin work rate for coin +20%
- Next technology
- Rice Markets
Effect & research conditions
Research at a Rice Paddy; it costs 400 Food and 400 Wood and takes 30 seconds. Its 20% Villager bonus applies only to the named Coin sources, not to Rice Paddy Food gathering or all economic work. Rice Markets is the next upgrade in the chain. Rice Trade and later technologies are available to the Asian civilizations under the relevant rules; Hacienda effects apply where a Hacienda is part of the civilization’s economy.
Research condition
Fortress Age; Rice Paddy; requires Rice Surplus
When to research
Research after Rice Surplus when the economy has workers on the affected Coin sources or an active Hacienda income stream. The 400 Food and 400 Wood cost is easier to recover when many workers can use the bonus for a sustained period. If the economy primarily uses Mines, this technology’s listed source coverage may not justify delaying units.
The first step of a three-stage chain
Rice Trade unlocks the progression to Rice Markets and later Rice Exports. It is available after Rice Surplus in the Fortress Age, while its two listed successors continue the chain into later Ages. Keep the prerequisites and 30-second research windows in the economy plan; skipping the first stage means the later Paddy upgrades cannot be accessed through this route.
Coin sources, not general gathering
The 20% increase applies to Villagers collecting Coin from Estates, Rice Paddies, Fields and Haciendas; Hacienda automatic Coin gathering also rises by 20%. It does not make the Paddy produce Food faster. Place workers according to the source you want to improve and compare its output with Mine gathering before spending the resources.