Iron bars
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Iron bars are a dungeon feature represented by #.
You cannot walk through them or dig through them, and objects thrown through them have a chance of being stopped by the iron bars. Spells and ray/beam attacks (such as dragon breath) will pass right through them as if they weren't there. All monsters which are whirly, amorphous, phasing, tiny, or slithy and not large can pass through them,[1] including you if you are polymorphed into such a monster.
They can be randomly generated in all dungeon levels, and there are guaranteed iron bars in the wizard, tourist and ranger quests.
Contents
A bit of history
Prior to version 3.6.0 they were never randomly generated in Vanilla NetHack.
Probably a 3.4.0 bug
A user has suggested improving this page or section as follows:
"Still valid for 3.6.0?"
If you are currently engulfed by a monster that can pass through them. The monster can still pass through them.
Variants
SLASH'EM
In SLASH'EM, iron bars may be found in some of the new levels of Sokoban, but aren't randomly generated. They are also found in Grund's Stronghold, and may comprise the walls of some maze levels, like in Gehennom. Iron bar mazes, are especially annoying during the ascension run.
Most creatures cannot pass through the bars, but a doppelganger character may still liquid leap through them.
UnNetHack
In UnNetHack, iron bars may be found in some of the new levels of Sokoban. They sometimes are generated on room-and-corridor dungeon levels instead of doorways. There is a small chance that levels in Gehennom may have iron bars instead of walls, making it difficult to hack a path.
Creatures are able to pass through Sokoban bars. Some are created around the exit if you are attempting to steal from the Black Market.
Iron bars may be dissolved by a potion of acid,[2] acid breath (with a 20% chance),[3] and eaten by metallivores.[4][5]
SporkHack
In SporkHack, they are sometimes generated on room-and-corridor dungeon levels instead of doorways.
References
This page may need to be updated for the current version of NetHack.
It may contain text specific to NetHack 3.6.0. Information on this page may be out of date.
Editors: After reviewing this page and making necessary edits, please change the {{nethack-360}} tag to the current version's tag or {{noversion}} as appropriate.
