|1x Heavy Mortar
|Mortar Platform Voucher x2
The War Koi is a paddle boat with compatibility for a heavy cannon or mortar. It is most notable for its ability to move backwards at full speed, allowing the crew to "run-and-gun" effectively. Due to the relatively high crew requirement and extremely specialized capabilities, it is rarely seen in a combat setting.
- The War Koi is the only paddle-propelled mortar ship, alongside being the only mortar ship that can go directly backwards.
- The War Koi resembles two Koi hulls attached via a pallet of wood between them.
- The War Koi requires rowers, each with a paddle, to allow the ship to move.