 A key rule is that a player may not operate both barges and lorries at the same time (even if they are stationary)

Ships are bigger again, able to carry 10 units (five of which must belong to the player) and travel across the ocean in a much more direct fashion than barges.They are also considerably more expensive, and incapable of travelling inland to the mines; instead players must first transport their units to the central warehouse, from where ships can begin their journey.It is possible to win a game without employing the use of ships.