Difference between revisions of "Helm of telepathy"

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A '''helm of telepathy''' is a type of [[helm]]. It grants [[extrinsic telepathy]].
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A '''helm of telepathy''' is a type of [[magical item|magical]] [[helm]] that appears in ''[[NetHack]]''. It is made of [[iron]] and has a [[randomized appearance]] when [[Identification|unidentified]]; the default one associated with it is a [[visored helmet]].{{refsrc|src/objects.c|470|version=NetHack 3.6.7}}
  
Despite being a mind-enhancing helmet, it will affect spell success rates adversely.
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==Generation==
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In addition to random generation, general [[shop]]s and used used armor dealerships can sell helms of telepathy.
  
== Identification ==
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[[Player monster]]s, including those on the [[Astral Plane]], have a {{frac|7|200}} chance (3.5%) of generating with a helm of telepathy as their initial helm before role-based replacements{{refsrc|src/mplayer.c|159|version=NetHack 3.6.7|comment=Default equipment; the helm is chosen from within the designated object classes inclusively in objects.c}} - [[Healer (player monster)|healers]] and [[Priest (player monster)|priests]] each have a {{frac|3|8}} chance of their initial helm being replaced with a helm of telepathy, raising their effective odds of generating with one to ~39.69%.{{refsrc|src/mplayer.c|193|version=NetHack 3.6.7|comment=Helm replacement for healers}}{{refsrc|src/mplayer.c|219|version=NetHack 3.6.7|comment=Helm replacement for priests}}
  
The helm of telepathy has the same base price as the [[helm of brilliance|other]] [[helm of opposite alignment|two]] randomized magical helms, at 50 zorkmids.
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==Description==
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While worn, the helm grants 1 base [[AC]] and extrinsic [[telepathy]]. Though it is a mind-enhancing helm, it has the same adverse effects on [[spellcasting]] as most other metal helms.
  
It does not auto-identify when worn. That said, its effect is extremely obvious after a short while (unless the player has stacked many turns of [[potion of monster detection|detect]] [[spellbook of detect monsters|monsters]] or has another source of extrinsic telepathy), and can be identified even faster by checking the next non-mindless monster you see with [[far look]] while not blind to see whether you can detect it via telepathy.
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==Strategy==
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{{main|Telepathy}}
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Extrinsic telepathy is a useful property for an [[ascension kit]], though not an essential enough one to warrant a wish - the helm of telepathy is usually superseded for this purpose by [[quest artifact]]s such as [[The Platinum Yendorian Express Card]] or [[The Eye of the Aethiopica]].
  
== Strategy ==
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A non-[[chaotic]] character may consider wearing this helm in some unusual cases where they intend to [[murder]] peaceful [[Human (monster attribute)|humans]] such as [[shopkeeper]]s or [[priest]]s, depending on how much easier it is for them to recover [[Luck]] and [[alignment record]] than intrinsic telepathy.
  
{{main|telepathy}}
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{{upcoming|3.7.0|Per {{commit|28ed8e79622ec6596eb59d642788a7f8375e78c8}}, the range of extrinsic telepathy is 8*sqrt{n}, where ''n'' is the number of sources - per {{commit|969c87c0a169d87295fe2b4e914acfae84e01057}}, sources of telepathy conferred by an artifact's non-[[base item]] properties are counted as one source.}}
  
A lawful character might consider wearing this helm if they intend to [[murder]] peaceful humans such as shopkeepers or priests, as [[Luck]] and [[alignment record]] are more easily regained than telepathy.
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===Identification===
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The helm of telepathy has the same base price of 50[[zm]] and base weight of 50 [[aum]] as the other two randomized magical helms, the [[helm of brilliance]] and the [[helm of opposite alignment]].
  
While extrinsic telepathy is not essential for the [[ascension kit]], it is still a useful intrinsic, and is thus quite popular. However, it can be rare, and helms of telepathy are not worth a wish to obtain.
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While wearing the helm but does not [[auto-identify]] it, its effect may become obvious after a short while if you are not [[blind]], and you can confirm if a freshly-worn helm is telepathy by [[far look]]ing the next monster that becomes visible to you. If it is not [[mindless]], and you have no other source of extrinsic telepathy such as an [[amulet of ESP]], then your helm is a helm of telepathy. Long durations of intrinsic [[monster detection]] may interfere with this, though using far look on monsters will still make clear what methods they are being seen through.
  
==[[SLASH'EM]]==
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==History==
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The helm of telepathy first appears in [[NetHack 3.0.0]].
  
In SLASH'EM it can be [[upgrade]]d from a [[dwarvish iron helm]] with 50% probability.
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==Variants==
{{stub}}
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===SLASH'EM===
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In [[SLASH'EM]], [[upgrading]] a helm of telepathy will produce a [[dwarvish iron helm]], and upgrading a dwarvish iron helm has a {{frac|2}} chance of producing a helm of telepathy.
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[[The Crown of Saint Edward]] is an [[artifact]] helm of telepathy that serves as the [[Yeoman]] [[quest artifact]], and also provides [[magic resistance]] and [[half spell damage]]. It is possible to informally identify a helm of telepathy by [[Naming artifacts|attempting to name a magical helm]] "The Crown of Saint Edward" and seeing if it succeeds.
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[[Grund's Stronghold]] has a {{frac|3}} chance of a blessed helm of telepathy generating within a [[chest]] in a hidden portion of the level's southwest corner.
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===SporkHack===
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In [[SporkHack]], it is possible for the helm of telepathy to have the randomized appearance of a [[tin foil hat]] - tin foil hats protect you from the psychic blasts employed by [[mind flayer]]s, but also block your own sources of telepathy, including the helm's telepathy should this occur.
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===dNetHack===
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In [[dNetHack]], the helm of telepathy grants 1 AC, 1 [[DR]] and telepathy while worn, and its weight is reduced to 30 aum. It can appear in [[Band (dNetHack)|band]] form as a "tiara of telepathy".
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[[dNetHack artifacts#The All-seeing Eye of the Fly|The All-seeing Eye of the Fly]] is a lawful large-sized [[intelligent artifact]] helm of telepathy that [[Baalzebub (dNetHack)|Baalzebub]] will always generate with. While worn by a character, it grants passive monster detection, and using far look on monsters will show their [[DR]] breakdown as well as their current inventory. [[Invoking]] the artifact lets you cast an area-of-effect "death spell", which is flavored as a disintegration field and acts similarly to the effect of breaking a [[wand of death]].
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===The November NetHack Tournament===
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In [[The November NetHack Tournament]], the [[deathmatch]] opponent has a {{frac|2}} chance of generating with a blessed erodeproofed +4 or +5 helm of telepathy if they represent a non-Wizard character that does not have a helm.
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===SpliceHack===
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In [[SpliceHack]], a helm of telepathy can be created at a [[furnace]] by combining a plain [[helmet]] and an amulet of ESP.
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===notdNetHack===
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In [[notdNetHack]], in addition to dNetHack details, [[Dantalion]] is generated with a helm of telepathy when summoned by an [[Illithanachronounbinder]].
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===EvilHack===
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In [[EvilHack]], the telepathy [[object property]] cannot generate on helms due to the helm of telepathy existing.
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[[Illithid (starting race)|Illithid]] characters that use their [[psionic wave]] ability while wearing a [[mithril]] or non-[[metallic]] helm of telepathy have a {{frac|4}} chance of the helm focusing the attack and increasing its damage by d6+2.
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===Hack'EM===
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In [[Hack'EM]], upgrading a tinfoil hat will produce a helm of telepathy and vice versa.
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The Crown of Saint Edward is made of [[steel]] so that it can be safely worn by [[Elf (starting race)|elven]] Yeomen.
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Grund's Stronghold retains the chance of generating a blessed helm of telepathy in the chest within the hidden area in the southwest.
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==References==
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<references/>
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{{nethack-367}}
 
[[Category:Helms]]
 
[[Category:Helms]]
{{nethack-343}}
 

Latest revision as of 21:58, 22 April 2024

[ Plumed helmet.png[ Etched helmet.png[ Crested helmet.png[ Visored helmet.png
helm of telepathy
Appearance random
Slot helm
AC 1
Special
Base price 50 zm
Weight 50
Material iron

A helm of telepathy is a type of magical helm that appears in NetHack. It is made of iron and has a randomized appearance when unidentified; the default one associated with it is a visored helmet.[1]

Generation

In addition to random generation, general shops and used used armor dealerships can sell helms of telepathy.

Player monsters, including those on the Astral Plane, have a 7200 chance (3.5%) of generating with a helm of telepathy as their initial helm before role-based replacements[2] - healers and priests each have a 38 chance of their initial helm being replaced with a helm of telepathy, raising their effective odds of generating with one to ~39.69%.[3][4]

Description

While worn, the helm grants 1 base AC and extrinsic telepathy. Though it is a mind-enhancing helm, it has the same adverse effects on spellcasting as most other metal helms.

Strategy

Main article: Telepathy

Extrinsic telepathy is a useful property for an ascension kit, though not an essential enough one to warrant a wish - the helm of telepathy is usually superseded for this purpose by quest artifacts such as The Platinum Yendorian Express Card or The Eye of the Aethiopica.

A non-chaotic character may consider wearing this helm in some unusual cases where they intend to murder peaceful humans such as shopkeepers or priests, depending on how much easier it is for them to recover Luck and alignment record than intrinsic telepathy.

The following information pertains to an upcoming version (3.7.0). If this version is now released, please verify that it is still accurate, then update the page to incorporate this information.

Per commit 28ed8e79, the range of extrinsic telepathy is 8*sqrt{n}, where n is the number of sources - per commit 969c87c0, sources of telepathy conferred by an artifact's non-base item properties are counted as one source.

Identification

The helm of telepathy has the same base price of 50zm and base weight of 50 aum as the other two randomized magical helms, the helm of brilliance and the helm of opposite alignment.

While wearing the helm but does not auto-identify it, its effect may become obvious after a short while if you are not blind, and you can confirm if a freshly-worn helm is telepathy by far looking the next monster that becomes visible to you. If it is not mindless, and you have no other source of extrinsic telepathy such as an amulet of ESP, then your helm is a helm of telepathy. Long durations of intrinsic monster detection may interfere with this, though using far look on monsters will still make clear what methods they are being seen through.

History

The helm of telepathy first appears in NetHack 3.0.0.

Variants

SLASH'EM

In SLASH'EM, upgrading a helm of telepathy will produce a dwarvish iron helm, and upgrading a dwarvish iron helm has a 12 chance of producing a helm of telepathy.

The Crown of Saint Edward is an artifact helm of telepathy that serves as the Yeoman quest artifact, and also provides magic resistance and half spell damage. It is possible to informally identify a helm of telepathy by attempting to name a magical helm "The Crown of Saint Edward" and seeing if it succeeds.

Grund's Stronghold has a 13 chance of a blessed helm of telepathy generating within a chest in a hidden portion of the level's southwest corner.

SporkHack

In SporkHack, it is possible for the helm of telepathy to have the randomized appearance of a tin foil hat - tin foil hats protect you from the psychic blasts employed by mind flayers, but also block your own sources of telepathy, including the helm's telepathy should this occur.

dNetHack

In dNetHack, the helm of telepathy grants 1 AC, 1 DR and telepathy while worn, and its weight is reduced to 30 aum. It can appear in band form as a "tiara of telepathy".

The All-seeing Eye of the Fly is a lawful large-sized intelligent artifact helm of telepathy that Baalzebub will always generate with. While worn by a character, it grants passive monster detection, and using far look on monsters will show their DR breakdown as well as their current inventory. Invoking the artifact lets you cast an area-of-effect "death spell", which is flavored as a disintegration field and acts similarly to the effect of breaking a wand of death.

The November NetHack Tournament

In The November NetHack Tournament, the deathmatch opponent has a 12 chance of generating with a blessed erodeproofed +4 or +5 helm of telepathy if they represent a non-Wizard character that does not have a helm.

SpliceHack

In SpliceHack, a helm of telepathy can be created at a furnace by combining a plain helmet and an amulet of ESP.

notdNetHack

In notdNetHack, in addition to dNetHack details, Dantalion is generated with a helm of telepathy when summoned by an Illithanachronounbinder.

EvilHack

In EvilHack, the telepathy object property cannot generate on helms due to the helm of telepathy existing.

Illithid characters that use their psionic wave ability while wearing a mithril or non-metallic helm of telepathy have a 14 chance of the helm focusing the attack and increasing its damage by d6+2.

Hack'EM

In Hack'EM, upgrading a tinfoil hat will produce a helm of telepathy and vice versa.

The Crown of Saint Edward is made of steel so that it can be safely worn by elven Yeomen.

Grund's Stronghold retains the chance of generating a blessed helm of telepathy in the chest within the hidden area in the southwest.

References

  1. src/objects.c in NetHack 3.6.7, line 470
  2. src/mplayer.c in NetHack 3.6.7, line 159: Default equipment; the helm is chosen from within the designated object classes inclusively in objects.c
  3. src/mplayer.c in NetHack 3.6.7, line 193: Helm replacement for healers
  4. src/mplayer.c in NetHack 3.6.7, line 219: Helm replacement for priests