TECHNOLOGY · CIVILIZATION-SPECIFIC
Great Wall
Walls and Towers gain extra hit points.

Overview
Walls and Towers gain extra hit points.
Effect and affected units
Great Wall changes walls and towers +30% hit points. Read the named target carefully: this effect applies only to the units, buildings, or economy described in its entry. This is the main reason to research it; compare the affected units with the army you expect to field.
Research cost and timing
Research is available in Castle Age at the Castle. The recorded cost is not separately recorded, and the research time is 40 seconds. Consider whether the upgrade will affect enough units or workers to repay that investment before the match is decided.
Effect and research timing
Walls and Towers gain extra hit points. Effect: Walls and towers +30% hit points. Research becomes available in: Castle Age; Research at: Castle; Research time: 40 seconds. This research is restricted to its named civilization, so it is part of that faction’s identity rather than a shared option. Its value depends on which units receive the effect and how often they take part in combat; timing it before a major engagement can improve the whole eligible group.
Research details
- Age
- Castle Age
- Research building
- Castle
- Research time
- 40 seconds
- Effect
- Walls and towers +30% hit points
Research requirements and effects for this entry.
- Also known as
- Great Wall (Age of Empires II)
- Focus
- Unique technology · Chinese
- Signature / category
- Unique technology · Chinese
- Release / context
- Civilization research
- Region
- Civilization-specific
- Classification
- Unique technologies