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Unchanging is a property in NetHack that prevents you from being polymorphed or otherwise transformed into another monster or form.

The only source of the property is wearing the amulet of unchanging.


Unchanging stops polymorphing and other means of changing form from occurring, including sliming and the effects of eating certain corpses or tins, but not stoning. If you gain unchanging while suffering from sliming, it is aborted and cured.

If you die while polymorphed (which would normally return you to your normal form) and have unchanging, you will instead die as normal in most cases. The exception are as follows:

In the above circumstances, you will be returned to normal form even with unchanging.


Main article: Amulet of unchanging

Unchanging is typically used to maintain a long-term (and often controlled) polyself for various purposes, in exchange for the risk of deaths that occur being permanent where they would not be otherwise. A source of unchanging can also be a good substitute for magic resistance in areas such as the Gnomish Mines beyond Minetown, where polymorph traps are a major obstacle; unchanging can also protect your steed from polymorph traps while riding. Unchanging can also suppress unwanted polymorphing from other sources, such as lycanthropy.


You can not change from your current form.
You have unchanging as viewed via enlightenment.


Some variants implement additional sources of unchanging outside of the amulet of unchanging.


In dNetHack, deep dragon scales (include scaled mail and shields) confer unchanging while worn.


In FIQHack, unchanging is one of the properties that can be conferred by quaffing or dipping into a potion of wonder.


In SpliceHack, the robe of stasis is a type of cloak that confers unchanging while worn.