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A metric ton was a unit used to measure large quantities of mass, such as the cargo capacity of spaceships. Gigatons, kilotons, and megatons[1] were terms for larger numbers of metric tons, and were often used to describe the destructive power of weapons.
Behind the scenes[]
The roleplaying games by West End Games (D6) and Wizards of the Coast (d20 & Saga) included measurements in metric tons for the cargo capacity of large vehicles such as tramp freighters.
