Ten captains, two teams, one cove. The goal is as old as the sea: take the other side's flag to your own circle, with yours still at home.
A dropped flag stays where its carrier sank, and returns when someone from its team sails over it. An invisible ship cannot take a flag, and a carrier who turns invisible drops it at once.
Whoever sinks returns in ten seconds the first time, twenty the second, and so on up to a one-minute cap. The match ends at ten points or twenty minutes, with damage breaking the tie.
Inside the field anything goes, and friendship protects no one: only the team counts. The whole map stays visible, because both sides need to see where the flags are.
You join through "Ready", in the Arena tab, from level 15. A match only starts with ten captains.