Inca technology tree
The Inca technology tree index links recorded Age of Empires III units, buildings and research to their individual reference pages. It emphasizes entries whose game data directly identifies this faction and is not a complete reconstruction of every shared option in the in-game tree; check unit and technology pages for additional civilization access.

Linked game entries
- Unit pages
- 17
- Building pages
- 17
- Technology pages
- 45
Civilization roster and research
The lists are grouped into units, buildings and technologies, then organized by the Age recorded in the game data. Shared options can appear in more than one civilization index; inclusion does not mean an item is unique. Follow an entry to check its cost, production or research site, prerequisites, counters and version band. A Home City Card, map alliance or scenario rule may change access, so this list is not a fixed build order.
Scope and availability
Scope: Age of Empires III civilization content. This index reflects matching entries in the saved game-fact records; each linked page gives its own version, Age and access conditions.
How to read the tree
Use the tree when planning an Age-up, Home City deck or response to an opponent. Find the unit line or upgrade that answers the immediate matchup, then check its entry for exact values and access rules. Map, mode, shipments, patch and edition determine which recorded options are useful in a particular match.
Units by Age
Commerce Age: Canoe. Revolution: Revolutionary. Age not specified: Builder Travois · Farm Travois · Kallanka Travois · Stronghold Travois · Trading Post Travois; Tambo Travois · War Hut Travois. Industrial Age*: Captured Mortar. Exploration Age: Fishing Boat · Llama · Native Embassy Travois · Peruvian Dog · Sheep · Villager · Warrior. Fortress Age (Native Americans) ; Revolution (Maya): War Canoe
Buildings by Age
Discovery Age: Fire Pit. Commerce Age: American Citadel. Fortress Age: Kallanka · Stronghold. Exploration Age: Command Center · Community Plaza · Dock · Farm · Fish Trap · Native Embassy · Tambo · Town Center · War Hut. Fortress Age; Exploration Age (with the "Advanced Estate" card): Estate. Exploration Age; Industrial Age (Lakota): Gate · Wall. Exploration Age; Revolution (Peru): Kancha House
Technologies by Age
Commerce Age: Forest People Ceremony · Gun Running · Harvest Ceremony · Inca Scouting Party · Long Lines. Fortress Age: Earth Gift Ceremony · Forest Spirit Ceremony · Green Corn Ceremony · Hualcana · Improved Cordage · Inca Raiding Party · River Raids · Royal Festival. Industrial Age: Cannery · Coca Cultivation · Inca War Party · Mass Production · Revetment · Star Fort · Steam Power · Water Power. Imperial Age: Blockade · Deforestation · Excessive Tribute · Large Scale Gathering · Legendary Native Warriors; Exalted Natives · Legendary War Boats · Spies. Fortress Age*; Industrial Age (Lakota): Bastion. Exploration Age (Inca) ; Revolution (Peru): Carib Allies · Mapuche Allies. Commerce Age*: Earth Ceremony · Queen's Festival. Exploration Age: Gill Nets · Hunting Dogs · Lumber Ceremony · Placer Mines · Selective Breeding · Spirit Medicine · Urcuchillay Worship · Zapotec Allies. Exploration Age*: Great Feast. Industrial Age (Asians and Native Americans) *; Imperial Age (Europeans and Mexicans): Immigrants. Industrial Age*: Thunderbolts of Illapa. Fortress Age*; Revolution (Mexico): Wild West
Check the entry for version and prerequisites
An index can include options recorded across multiple Age of Empires III releases. Older faction names, card unlocks, research prerequisites and campaign-only rules can change availability. Check the linked page’s version band and conditions before applying an option to a specific game.
Kancha Houses and Tambos shape map control
Kancha Houses replace ordinary Houses, provide population space and passively generate Food. Their placement therefore affects both the housing plan and the economy: spreading them toward resources can extend Food income, but isolated sites need protection. Chasqui arrive with age advances and can construct Tambos, which function as defensive Trading Posts and can shelter Villagers. Use the linked building pages to check each structure’s access and capacity; the tree’s age list alone does not show whether a site is safe or whether the economy can support expansion.
Separate standard Inca access from Peru revolution options
The index includes entries tagged to both the Inca roster and the Peruvian Revolution. A line marked Revolution (Peru), such as Revolutionary or Kancha House in the legacy data, describes a political transition or replacement roster rather than an ordinary Inca Age-up unlock. Standard Inca planning instead uses the Community Plaza, Kallanka, Stronghold, Priestesses, Macemen and Chasqui support. Moon Ceremony can support Wood, while Supay Ceremony produces Macemen; choose the ceremony for the immediate economic or military need and protect workers assigned to it. Verify each linked entry’s faction and mode before treating a revolution unit or building as part of the standard Inca tree.