Lumber Preservation is a technology in Age of Empires IV that can be researched at the Lumber Camp, Ger, and various landmarks starting in the Castle Age. Once researched, it increases Villagers' gathering rate for Wood by 15%. The Knights Templar do not have access to this technology, instead gaining an automatic +20% gather rate increase per Age.
Civilization bonuses[]
Abbasid Dynasty: Research speeds are +15%/+20% faster while Golden Age tiers 2/3 are active. If Preservation of Knowledge has been researched, this technology costs -20%.- Ayyubids: Research speeds are 25% faster while Golden Age tier 2 is active
- Byzantines: Research speeds are 30% faster per water level at buildings within the influence of a Cistern with the Dialecticus ability active.
- Chinese and Zhu Xi's Legacy: The technology researches 150% faster when the Lumber Camp is supervised by an Imperial Official. For Zhu Xi's Legacy, this can be improved to 300% faster after researching Regional Inspection.
- Delhi Sultanate: The technology is free, but takes 5x as long to research (300 seconds instead of 60 seconds).
- French and Jeanne d'Arc: Economic technologies are 35% cheaper.
- House of Lancaster: This technology is 15% cheaper if King's College has been constructed.
- Malians: Technologies take less time to research based on how much gold has been obtained through trade.
Changelog[]
- Originally, the Mongols' Improved Lumber Preservation provided an additional 5% gathering rate (for a total bonus of 20%). With Season Two Update 17718, it provides an additional 7.5% gathering rate (for a total bonus of 22.5%). With update 15.1.6970, the effects of all improved wood gathering technologies were merged into Improved Double Broadax, and Improved Lumber Preservation was removed.
- Originally, Lumber Preservation cost 150 food, 350 gold and took 75 seconds to research. With update 24916, it costs 100 food, 250 gold and takes 60 seconds to research. The additional stone cost of the Mongols' improved version was subsequently reduced from 500 to 350.
- With update 12.0.1974, the icon was changed to its current version. It previously used the same icon as Double Broadax.
Campaign version[]
Because the campaigns have not been rebalanced since the release of the game, Lumber Preservation has different stats there:
- It costs 400 gold and takes 75 seconds to research.
- The Mongol improved version costs +400 stone and increases gather rate by an additional 5% only (for a total of +20%).
