AOE IV / Technologies
Yam Network
Yam speed aura applies to all units instead of just Traders and cavalry units. Does not apply to siege engines.
TechnologiesAge of Empires IV: Anniversary EditionUnique to select civilizations
What it does
Yam speed aura applies to all units instead of just Traders and cavalry units. Does not apply to siege engines.
How it fits into a match
Research at <a href="../buildings/outpost.html">Outpost</a> once its age and civilization conditions are met. The effect list shows exactly what changes; prioritize it when the units or buildings affected are part of your current plan.
Research conditions
Earliest listed form for each civilization in this game-data snapshot. Unit and building statistics are shown for that form; later-age upgrades and civilization bonuses can change values.
| Civilization | Age | Cost | Time |
|---|---|---|---|
| Mongols | Castle Age | 100 wood, 250 gold | 60 s |



