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Mutation Basics
Mutations are a rare part of a wolf's genetics that make them unique! Not all wolves have mutations, but those that do can be more valuable or more visually distinct than other wolves.
On each wolf, there are two slots available for mutations. This means that two mutations can be bred onto the same wolf. However, not all mutations can be doubled up. Some mutations, like Brachycephaly, are always primary, so they always taken up the main mutation slot and cannot be paired with other primary mutations. Some mutations, like Albinism or Melanism, will always take up the secondary mutations slot. This means that a wolf might have no primary mutations, but can have a secondary mutation present.
In general, large, drastic mutations with lineart changes will take up the primary mutation slot while smaller changes like albinism will take up the secondary mutation slot.
Wolves with mutations will also have icons next to the mutation name of their wolf page. These icons reflect what kind of mutation the wolf has. More information about these different kinds of mutations is available further down in this guide.
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Random Chance Mutation
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Recessive Genetic Mutation
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Lethal Mutation
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Applicator Mutation
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Art of the concept of secondary mutations from Wolvden's [Tumblr].
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Random Mutations
Some mutations have the chance to show up randomly in any breeding. However, the chance is very low. All current random mutations are lethal. So, in order to keep a wolf with a random mutations, you must immortalize them.
Lower fertilities increase the chance for a random mutation in a breeding, as per the breeding tutorial quest.
Other than breeding wolves with lower fertilities, there is nothing you can do to increase your chances of getting a random mutation.
The currently available random mutations are listed below.
- Conjoined Twins
- Deafness
- Polycephaly
- Polymelia
- Spontaneous Blindness
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Genetic Mutations
Some mutations are determined by hidden genes present in some wolves. Hidden genes are always recessive, meaning that both genetic parents must have the hidden gene, and both genes must pass to the puppy in order for the puppy to develop a mutation. You can't see hidden genes from the outside -- you won't know if your wolf carrying a gene unless they happen to be bred with another wolf with the same gene, and their puppy has a mutation. Alternatively, you may check the wolf for hidden genes at [Gene's Hollow].
Once a wolf has been gene checked at [Gene's Hollow], they will be given a Carrier Status Report, which can be viewed under the Looks section of the wolf's page.
The report lists all the current recessive mutations and whether or not the wolf is a carrier for said mutation.
The report could include four different icons, explained below.
 Wolf has not been tested. |
 Wolf is not a carrier of the mutation. |
 Wolf is a carrier of the mutation. |
| Wolf has the mutation. |
Wolves are able to be a carrier of multiple hidden genes at the same time. You could breed one line of mutation carriers that carry every hidden gene in the game, if you would like to.
Any wolf that's newly generated has a small chance of having a hidden gene. This means NBWs, new lead wolves, and new customised wolves can all have hidden genes.
Every recessive genetic mutation has the same gene pass rates. These pass rates are listed below and were last confirmed shortly before beta testing ended in September 2020.
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Non-carrier x Non-carrier =
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100% Non-carrier
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Non-carrier x Carrier =
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90% Non-carrier, 10% Carrier
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Non-carrier x Mutation =
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15% Carrier, 85% Non-carrier, 0% Mutation
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Carrier x Carrier =
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10% Carrier, 10% Mutation, 80% Non-carrier
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Carrier x Mutation =
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15% Carrier, 15% Mutation, 70% Non-carrier
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Mutation x Mutation =
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10% Carrier, 20% Mutation, 70% Non-carrier
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Another thing to note is that recessive mutations do not interact with each other. This can be represented by an example breeding between a wolf with Albinism and a wolf with Melanism. If you breed these two wolves together, it is treated like a breeding between a Mutation x Non-carrier because neither wolf carries the other's mutation. This breeding will not give you the chance for an Albinism or Melanism pup unless either wolf is actually a carrier of the other's mutation.
The currently available genetic mutations are listed below.
- Albinism
- Brachycephaly
- Hereditary Cataracts
- Melanism
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Applicator Mutations
Applicator mutations are mutations which can be obtained either through breeding or applying them directly to your wolf using a Mutie on Demand applicator.
Mutie on Demand applicators can be used on any wolf who doesn't already have a secondary mutation. It is not possible to find a NBW who has this type of mutation.
Besides being applied using applicators, Applicator mutations also have a small chance of passing to pups through breeding. These are not genetic/recessive mutations. Applicator mutations cannot be carried or passed recessively through generations. A pup will only have a chance of getting the mutation if one of their direct parents has the mutation.
The chance of the mutation passing is currently unknown, but is specified as being "small". Breeding two wolves with the same applicator mutation together will increase the chances of a pup getting that mutation.
Applicator mutations, like genetic mutations, also do not interact with each other. A wolf with Piebald: Torn, for example, cannot produce a pup with Piebald: Uneven.
The currently available applicator mutations are listed below.
- Piebald: Torn
- Piebald: Uneven
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