Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
편류계를 사용하여 배의 방향을 조정할 수 있습니다.pyeollyugye-reul sayonghayeo bae-ui banghyang-eul jojeonghal su itsseumnida.You can adjust the direction of the ship using the drift indicator.