Objects set immortal cannot be killed and don't use up money. Only settable by wizards. This is useful when an object's location shouldn't be changed by Joe Player, but you don't want to have to relink it to its current location whenever it moves.
|Note: The same effect can be achieved by setting the object with the free_money and unkillable powers.|
PennMUSH does not have an IMMORTAL flag. It used to have a power of the same name and with the same effect, but setting that power now simply sets all of free_money, free_quota, and unkillable separately.