TECHNOLOGY · CIVILIZATION-SPECIFIC
Eupseong
Most Towers gain range.

Overview
Most Towers gain range.
Effect and affected units
Eupseong changes guard Towers and Keeps +2 range. 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 300 Food, 300 Wood, 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.
Matchup plan: Eupseong Korean tower-range defense
Eupseong works with Korean tower upgrades to extend defensive range, helping arrow towers punish attackers before they reach the shoreline or a resource site. Use the added reach to protect a planned position and support a forward network Research Eupseong when towers will cover a meaningful route, especially on water maps or near a vulnerable economy. Combine the range with available Blacksmith improvements, place towers with overlapping fields of fire, and keep builders screened as the position goes up. In an offensive plan, establish one protected foothold at a time so the towers make enemy raids and bombardment more difficult A tower network costs resources and can be bypassed if it does not cover a useful approach. Long-range siege and specialized bombard units remain a threat; keep mobile units ready to protect the structures and pressure siege
Effect and research timing
Most Towers gain range. Effect: Guard Towers and Keeps +2 range. Research becomes available in: Castle Age; Research at: Castle; Research cost: 300 Food, 300 Wood; 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
- Guard Towers and Keeps +2 range
Research requirements and effects for this entry.
- Focus
- Unique technology · Koreans
- Signature / category
- Unique technology · Koreans
- Release / context
- Civilization research
- Region
- Civilization-specific
- Classification
- Unique technologies