TECHNOLOGY · CIVILIZATION-SPECIFIC
Double Crossbow
Scorpions and Ballista Elephants fire an additional bolt.

Overview
Scorpions and Ballista Elephants fire an additional bolt.
Effect and affected units
Double Crossbow changes ballista Elephants and Scorpions fire an additional projectile of half strength. 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 Imperial Age at the Castle. The recorded cost is 700 Food, 400 Gold, 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
Scorpions and Ballista Elephants fire an additional bolt. Effect: Ballista Elephants and Scorpions fire an additional projectile of half strength. Research becomes available in: Imperial Age; Research at: Castle; Research cost: 700 Food, 400 Gold; 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.
Research details
- Age
- Imperial Age
- Research building
- Castle
- Research time
- 40 seconds
- Effect
- Ballista Elephants and Scorpions fire an additional projectile of half strength
Research requirements and effects for this entry.
- Focus
- Unique technology · Khmer
- Signature / category
- Unique technology · Khmer
- Release / context
- Civilization research
- Region
- Civilization-specific
- Classification
- Unique technologies