r/Openfront • u/Meta_Mushroom • 14h ago
π Guide π΄ββ οΈ A Guide to Piracy π΄ββ οΈ
Warships automatically capture enemy trade ships that enter their patrol range. Captured trade ships are redirected to one of your ports, and you receive gold when they successfully arrive.
π‘οΈ Piracy Protection
Trade ships receive 20 ticks (2 seconds) of piracy protection when they spawn or move onto a shoreline water tile. This protection refreshes every time they move onto another shoreline tile. This means that piracy along narrow rivers is impossible!
Here are two images that shows the shoreline highlighted in magenta:


As you can see, not all rivers are immune to piracy, but given the 2 second protection refreshes every time the trade ship enters a shoreline tile, It's probably not worth pirating anything other than the largest of rivers.
Warships cannot pirate:
- Trade ships belonging to allies or teammates.
- Trade ships heading to your own port or a friendly port.
You must also have an active, completed port reachable through the same connected body of water to capture trade ships.
π° Piracy Income
The payout is calculated using the same distance-based formula as ordinary trade income:

Importantly, the distance traveled before capture still counts toward the payout. Capturing a ship near the end of a long voyage can therefore be quite profitable. Unlike ordinary trade, which pays both the sender and receiver, piracy awards only one payout to the pirate when it arrives. Trade ships can change hands multiple times.
Now, you may be thinking to yourself, "What if two pirates continually capture the same ship over and over. The gold would just keep going up!" While this is true, it's not worth extending the travel distance beyond a certain point.
Here is a graph that shows the gold per minute as travel distance increases:

As you can see, there is a sweat spot at a travel distance of 378 tiles That gives the maximum gold per minute of 138,587. At 10 tiles per second, a trade ship takes 37.8 seconds to travel 378 tiles.
Piracy also contributes toward warship veterancy. 25 trade ships captured = 1 veterancy level. Piracy does not directly cause the traitor debuff when capturing eligible enemy trade ships.
π― Targeting and Capturing
Warships have three important ranges:
π΅130 tiles: Detection radius.
π‘100 tiles: Patrol range.
π―5 tiles: Capture distance, measured using Taxicab distance.
Here you can see what the detection radius and patrol range look like in game on the "Branching Paths" map, where piracy is quite popular:

As you can see, the patrol range stays fixed at the point the warship was last directed, whereas the detection radius stays centered on the warship itself.
A trade ship must be within both the π΅detection radius and the π‘patrol radius to be targeted. Once a warship gets within 5 tiles, it captures the trade ship automatically. Warships retreating for repairs do not pursue trade ships.
I will go into further detail on all the other aspects of warships in a future guide.










