Siphons is a University technology. Fire Ships gain an explosive charge attack.
- Building: University
- Age: Castle Age
- Cost: 100 food, 175 gold
- Research time: 45 seconds
- Available to: 29 of 56 civilizations (27 do not have it).
Gives Fire Ships an explosive charge attack.
Figures from the game data for Update 185872 (September 2026), at the time of publishing.