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For the macro used to define all apelike creatures, see S_YETI.

A yeti, Y, is a type of monster that appears in NetHack. It is a strong and carnivorous apelike creature that can be seen via infravision.

A yeti possesses two claw attacks and a bite attack.

Eating a yeti corpse has a 13 chance of conveying cold resistance.


Randomly generated yetis are always created hostile.

Yetis appear among the random Y that make up the second quest monster class for Healers and make up 6175 of the monsters randomly generated on the Healer quest.


The yeti is dangerous for early-game characters and must be dealt with carefully: while it cannot grab the player like a carnivorous ape, its 15 speed is faster than the largest ape and unhasted characters.

With a small bit of preparation, you can blunt a yeti's damage with high AC, or else safely deal with it from a distance: engraving Elbereth can scare it off, allowing you to follow up with any ranged attacks at your disposal. Multishot projectiles, offensive spells and wands are ideal, especially if you can exploit the yeti's vulnerability to fire. The yeti's own 6 AC is low enough that even a mediocre spellcaster can kill a yeti with a few uses of the force bolt spell; non-casters can do the same with a wand of striking.


The yeti first appears in PDP-11 Hack, which is based on Jay Fenlason's Hack, and is included in the initial bestiary for Hack 1.0. From this version to NetHack 3.0.10, the yeti was the sole member of its monster class monster - in NetHack 3.1.0, the apelike creature monster class is moved from A to its current glyph, and the yeti is merged into the monster class, with its macro repurposed to represent them.[1][2]


The Yeti, or Abominable Snowman, is an iconic cryptozoological animal said to inhabit the Himalayan region of Nepal and Tibet. Folklorists trace the origin of the Yeti to a combination of factors, including the folklore of pre-Buddhist Himalayan cultures such as the Sherpa people, and misidentified fauna such as bears or yak.

The Yeti is often described as being a large, bipedal ape-like creature that is covered with brown, gray, or white hair, and it is sometimes depicted as having large, sharp teeth.


Variants of NetHack typically make it impossible for yetis to generate in Gehennom, as they are weak to fire.


In SLASH'EM, yetis can be tamed by throwing them bananas.[3] Yetis also hit other monsters as a +1 weapon.

Lethe patch

In the Lethe patch, seven yetis are generated in the lair of Geryon within Gehennom.


In dNetHack, the weight of a yeti's corpse is increased by 1000 aum (more than 50%), and their base experience is increased; they can also no longer be tamed.


In EvilHack, yeti have their base experience decreased to 29 and cannot appear in Gehennom, but are otherwise identical to vanilla yeti.

Monster stats by variant

Encyclopedia entry

The Abominable Snowman, or yeti, is one of the truly great
unknown animals of the twentieth century. It is a large hairy
biped that lives in the Himalayan region of Asia ... The story
of the Abominable Snowman is filled with mysteries great and
small, and one of the most difficult of all is how it got that
awful name. The creature is neither particularly abominable,
nor does it necessarily live in the snows. _Yeti_ is a Tibetan
word which may apply either to a real, but unknown animal of
the Himalayas, or to a mountain spirit or demon -- no one is
quite sure which. And after nearly half a century in which
Westerners have trampled around looking for the yeti, and
asking all sorts of questions, the original native traditions
concerning the creature have become even more muddled and

[ The Encyclopedia of Monsters, by Daniel Cohen ]