Elona Wiki

Gene Engineer is Learning based skill that allows you to combine one pet with another to make a stronger ally. Gene engineering requires a gene machine, which can be acquired in Port Kapul through the Ambitious Scientist quest.

Using the Gene Machine[]

Two pets are required in order to use the gene machine.

  1. Use the Tool command on the gene machine.
  2. Select your first pet; this pet will be the recipient of the second pet's genes.
  3. Select the second pet; a list of body parts and skills that can be added to the first pet will be provided.

Once the pets have been combined, a character sheet for the augmented pet will appear. This can be used instead of paying the informer 10,000 gold. Note that higher level creatures cannot be combined until your skill raises. You cannot perform any gene engineering upon a creature unless its level is less than or equal to your gene engineering skill level plus five. For example, you can perform gene engineering on a Tyrannosaurus -- a level 30 creature -- when your gene engineering skill is 25.

For easy training, take your gene machine to the slave market owner in Derphy and keep buying and combining cheap slaves; if your skill isn't high enough or you simply can't afford to buy bulks of slaves, it could be faster and a cheaper alternative to take your gene machine to Yowyn and combine lame horses and cheap wild horses. Make sure to pick up your Gene Machine when you are done training to prevent the cleaner from destroying it.

Another easy way is to stockpile items such as Diaries and Scrolls of Ally, the latter of which have the benefit of being able to summon monsters that cannot be bought as slaves.

Effects of Gene Engineering[]


New skills may be learned by the augmented pet. For example, by combining the dog you may receive at the beginning of the game with a little girl purchased in Derphy, the dog may learn Detection, Performer, Investing, Tactics, or Two Hand. Tactics is very valuable for a dog, since it increases the dog's melee damage. A single donor may donate up to two skills.

In Elona+ version 1.37, pets who have the skill gene engineering and have an impression(>100) can help collect materials after defeating enemies. You can then interact with them by Talk->Receive Materials to get the materials they have collected.

Experience and stats[]

Some of the experience of the previous pet will transfer to the augmented pet. If the donor's level is greater than the recipient's level, the recipient's level will become ((donor's level) + (recipient's level) + 1)/2, rounded up if the result is a fraction (but no higher than the donor's level).

The augmented pet's attributes may also increase when gaining levels, depending on genes added. The 3 highest attributes of the sacrificed pet are chosen, and if the recipient's are lower, they will be raised (a pet cannot gain more than 10 points for each attribute in a single fusion). This only happens if the donor is higher level than the recipient - even one level lower. Thus, this is one possible efficient use for potions of descent. Attributes gained in this manner do not reduce potential.

Body parts[]

The augmented pet may gain a body part. This is very useful, as some good allies are lacking slots. Gene recipient, however, can't get more body parts a particular type than a donor has; for example, if both the recipient and the donor have two ring slots, then the recipient will gain no new ring slots. Also, only a single slot can be donated at a time: for example, if the recipient has two ring slots and the donor has five ring slots, then the recipient will only gain one new ring slot, rather than three new ring slots.

Note that having too many body parts will result in "body is complicated" feat, which decreases speed by 5% for each body part over 13. Standard number of body parts for human pets is 13.

Note that body part received varies not just with donor, but with recipient too. (See table below, especially Public Performer and Silver Cat.)

The body parts that each creature spawns with is dependent wholly on its race. One can assume an Asura will have the same parts to donate as an {Asura}, a Varuna or even a Kali.

Reference for the number of body parts of each race:

Race Head Neck Back Body Hand Ring Arm Waist Leg
Kobold 1 - 1 1 2 2 1 1 1
Orc 1 - 1 1 2 1 1 1 1
Troll 1 - 1 1 2 - 1 1 -
Lizardman 1 - 1 1 2 1 1 1 1
Minotaur 1 - - 1 2 1 - 1 1
Asura - 1 - - 4 - - - -
Slime 1 - - - - - - - -
Wolf 1 1 1 1 - - 1 - 1
Zombie 1 1 1 1 1 1 1 1 -
Rabbit 1 1 1 1 - - 1 - -
Sheep 1 1 1 1 - - 1 - 1
Frog - - - 1 - - - - -
Centipede (Worm) - - 1 - - 2 - - -
Mandrake 1 - 1 - - - - - -
Beetle - 1 - - - - - - -
Mushroom 1 1 - - - - - - -
Hound 1 1 1 1 - - - - 1
Ent - - - - 1 2 1 - 1
Bat 1 - - - - - - - -
Ghost 1 1 1 1 2 2 - - -
Spirit 1 1 1 1 2 2 - - -
Eye 1 - - - - - - - -
Wyvern - 1 - 1 - 2 - - -
Wasp 1 - - - - - - - -
Giant - - 1 1 2 - 1 - 1
Imp* - 1 - 1 2 1 - - -
Hand - - - - 2 2 1 - -
Snake - - - 1 - - - - -
Drake - 1 - 1 - 2 - - -
Bear - - - - 2 2 1 1 1
Armor 1 1 1 1 2 - 1 1 -
Medusa - - - 1 2 2 1 - 1
Cupid - 1 - 1 2 2 1 1 -
Phantom - 1 - 1 2 2 1 - -
Harpy - 1 - - 2 2 1 - 2
Dragon - 1 - 1 - 2 - - -
Dinosaur - 1 - 1 - 2 - - -
Cerberus (Beast) 1 1 1 1 - - 1 - 2
Spider - - - - - 2 - - -
Rock 1 - - - - - - - -
Crab - - 1 - 2 2 - - 1
Skeleton 1 1 1 1 2 2 1 1 1
Piece 1 1 1 1 2 2 1 1 -
Cat 1 1 1 1 2 - 1 - 2
Dog 1 1 1 1 - - 1 - 2
Rat - - 1 - - - 1 1 1
Shell - - - - - - - - 1
Catgod 1 1 - 1 1 1 1 - 1
Machinegod 1 - 1 1 2 - 1 1 1
Undeadgod - 1 1 1 2 2 - - -
Machine 1 1 1 1 2 2 1 1 1
Wisp 1 - - - - - - - -
Chicken* 1 - - - - - - - -
Stalker - 1 - - 2 2 1 - -
Catsister 1 1 1 1 2 2 1 1 1
Yeek 1 1 1 1 2 2 1 1 1
Yith - - - 4 4 - - -
Servant 1 1 1 1 2 2 1 1 1
Horse - - - 1 - - - - 2
God - - - - 2 - - - -
Quickling 1 - 1 1 2 2 1 - 1
Metal 1 - 1 1 - - - - -
Bike (Behicle) 1 - 1 1 2 - - 1 2
Bacteria† - - - 1 - - - - -
Bird† 1 - - 1 - - - - 1
Doggod† 1 1 - 1 1 1 1 - 1
Imp† - 1 - 1 2 3 - - 1
Goblin 1 1 1 1 2 2 1 1 1

* Vanilla Elona only

† Elona+ only

Despite what one would expect, body parts donated are based on both the donor and recipient. For example (given all unaugmented donors and recipients), when a brown bear has a gold bell merged into it, the bear gains a head. When the brown bear has a blade merged into it, the bear gains a body. Conversely, when a rat has a gold bell merged into it, the rat gains a body. When the rat has a blade merged into it, the rat gains a head. This is counter-intuitive. If one is looking for a specific body part and does not have a large supply of domination magic, it is easiest to look for a creature which cannot donate anything else. For example, a bat only has three slots: Head, Shoot, and Ammo, therefore it cannot donate anything other than Head.

Some races will first give legs up to 2 pairs, which may be undesirable because of speed penalty. (This is not true of the carbuncle, perhaps others?)

Human pets without any additional body parts will never give body parts to the recipient.

Note that augmented pet's offspring will be of the normal type.

Humans can give a 3rd "Leg" slot to these who have gained a second one through a horse, dog.. etc., but they cannot give a second one. (Could not duplicate this with a rat given a second leg by a carbuncle and an unaugmented little girl. How would a human get a 3rd leg? This contradicts the idea that the donor cannot donate more of a body part than they have.)

Mutant genes[]

There are NPCs of mutant race in the game; they possess the same mutant feat a mutant player would. An obvious example is NPC of the same name (mutant). Mutants grow a new (random) body part every three level ups (up to level 36), and as long as a mutant has more slots of a type than a recipient, it is able to pass the slot gene. Mutants don't grow new bodies and ranged slots; pretty much anything else seems to be possible (multiple necks for example). Mutants aren't the fastest breeders around so you'd probably want to get the "usual" item slots some other way.

Mutants are low-level monsters so you can easily level them up by adding genes from pets bought at slave market.

Keep in mind that a donor can only donate a single body slot, so if a mutant has five ring slots combining it with a normal humanoid will only result in the recipient having three ring slots.


As of version 1.17 of Elona+ you can have Doctor Gavela add more body parts to a pet at the cost of life. Unfortunately, limbs gained this way can't be transferred via gene engineering.

Table of Donors[]

Note that depending on donor OR recipient, the body part received can change.

Donor Body Parts Skill Recipient
<Bishop> (none) Alchemy, Magic Capacity golden knight
<Pawn> Arm Literacy asura
<Pawn> Arm / Neck Literacy

wild horse

acid slime (none) Sense Quality golden knight
alien (none) Traveling, Greater Evasion golden knight
alien (none) Traveling, Greater Evasion little girl
asura (none) Greater Evasion, Anatomy golden knight
asura (none) Greater Evasion, Dual Wield little girl
asura Hand Two Hand, Greater Evasion wild horse
bat (none) Greater Evasion golden knight
blade Waist / Ring Disarm Trap wild horse
blade alpha Back Lock Picking wild horse
blade alpha Back Disarm Trap fire dragon child
brown bear (none) Eye of Mind, Performer little girl
brown bear Arm Performer fire dragon child
cat Leg Greater Evasion golden knight
cat Neck Greater Evasion, Performer wild horse
centipede Ring Eye of Mind cyclops
chaos eye Head Detection wild horse
Child boar Hand None Acid slime
chicken Head None wild horse
deformed eye (none) Detection, Anatomy <Isca> the fallen angel
deformed eye (none) Detection, Anatomy knight of elea
deformed eye (none) Detection, Anatomy little girl
Dragon Jeweler Quickling
Elenor (roran) Magic practice Quickling
electric cloud (none) Control Magic golden knight
fallen soldier (none) Casting little girl
fire centipede (none) Eye of Mind younger sister
fire centipede (none) Eye of Mind

little girl

fire centipede Ring None wild horse
Fire hound Barrier, mind control Dragon
gangster (none) Tactics / Negotiation gold bell
goblin (none) Eye of Mind little girl
goblin Ring Eye of Mind silver bell
goblin warrior Leg Mining, Eye of Mind gold bell
goblin warrior Ring Mining orc warrior
goblin wizard Waist Literacy gold bell
greater pumpkin (none) Literacy golden knight
grudge Ring Magic Device gold bell
hand of the chaos Ring / Arm Eye of Mind wild horse
hand of the dead (none) Eye of Mind little girl
hand of the dead Hand / Arm / Ring Eye of Mind wild horse
hand of the dead Hand None fire dragon child
hand of the murderer (none) Eye of Mind little girl
harpy Leg Magic Capacity, Magic Device golden knight
harpy Hand Magic Capacity, Magic Device wild horse
hedgehog Hand Disarm Trap wild horse
hermit crab Leg Swimming fire dragon child
hungry sea lion Hand None wild horse
imp Neck Memorization, Control Magic gold bell
imp (none) Memorization, Control Magic little girl
juere infantry (none) Two Hand gold bell
juere infantry (none) Lock Picking little girl
kamikaze yeek Ring None gold bell
kamikaze yeek Hand / Head None wild horse
kobold Hand Two Hand, Magic Device noyel horse
lame horse Leg None

gold bell

lame horse Leg None Younger Sister
lesser mummy (none) Fishing
lesser phantom Back Memorization, Disarm Trap <Isca> the fallen angel
lesser phantom (none) Magic Device, Disarm Trap Knight of Elea
lesser phantom (none) Memorization, Disarm Trap little girl
lesser phantom (none) Memorization, Disarm Trap young lady
lesser phantom (none) Memorization, Casting younger sister
little girl (none) Tactics cobra
little girl (none) Tactics gold bell
lizard man Head Two Hand <Isca> the fallen angel
lizard man Waist Two Hand gold bell
lizard man Arm Two Hand wild horse
military putit (none) Disarm Trap putit
minotaur (none) Eye of Mind golden knight
minotaur boxer (none) Eye of Mind golden knight
minotaur boxer (none) Tactics, Eye of Mind harpy
Mummy Two Hand Quickling
nurse (none) Two Hand gold bell
orc warrior Arm Two Hand wild horse
Public performer (none) Negotiation little girl
Public performer (none) Tactics gold bell
Public performer (none) Magic Device golden knight
quickling (none) Greater Evasion golden knight
red wasp Head Greater Evasion wild horse
robber (none) Lock Picking, Performer little girl
rock thrower (none) Dual Wield, Magic Device little girl
rogue archer (none) Marksman gold bell
rogue warrior (none) Dual Wield silver bell
Roran Magic practice Quickling
scorpion Ring Eye of Mind wild horse
Sea lion, super hungry Preformer Quickling
shade Hand Magic Device, Eye of Mind wild horse
silver cat Leg Performer little girl
silver cat Hand Performer silver bell
Shadow stalker Arm Eye of Mind little girl
Spider Ring Anatomy gold bell
stalker Arm Eye of Mind golden knight
Steel mass Lock picking Quickling
troll Waist None cyclops
wasp (none) Greater Evasion golden knight
wasp (none) Greater Evasion little girl
wasp Head Greater Evasion wild horse
wild horse Leg None gold bell
wild sheep (none) Traveling magic spirit
yeek archer (none) Marksman little girl
yeek archer Arm Marksman, tailor wild horse
Yerles machine infantry (none) Marksman silver bell
Yerles machine infantry (none) Literacy, Negotiation, Marksman gold bell
young lady (none) Performer golden knight
younger sister (none) Dual Wield

gold bell

Notes: The gold bell may have been used as a recipient once or twice before 'test 'recording. Therefore it's possible that entries are incomplete for gold bell being recipient. As this is a public wiki, any recipient (especially little girl) may potentially be insufficiently tested.

Table of Skills[]

Want to add a skill to a recipient? This table will show you which donors give the skills. Do note that you might need to give other skills first before the skill you want shows up.

Some skills are not listed, because they are very common, or you get them automatically. And most donors have them. These are, Tactics, Two Hand, Long Sword, Axe, Martial Arts, Scythe, Healing, Shield, Heavy Armor, Medium Armor, Blunt, Polearm, Stave, Light Armor, Evasion, Short Sword, Bow, Crossbow, Throwing, Stealth, Firearm, Faith, Meditation, Casting, Magic Device

Not all possible donors are listed, just the more common or easy to get variants.

Skill Donors
Weight Lifting Little girl
Mining Goblin,
Carpentry Ents, Giants,
Lock Picking Robber, Public performer, Thief,
Dual Wield Robber, Public performer, Thief
Tailoring Mercenary archer, Farmer, Cupid of Love,
Pickpocket Robber, Public performer, Thief,
Jeweler Wizard of Elea, Rogue wizard,
Disarm Trap Yerles machine infantry, Rogue archer,
Sense Quality Hermit crab, Fire ent, Noyel horse, Little Boy
Detection Yerles machine infantry, Rogue archer, Ent
Fishing Flying frog, Goblin, Zombie, Putit,
Eye of Mind Goblin, Ents, Noyel horse, Little Boy
Greater Evasion Bats
Marksman Yerles machine infantry, Rogue archer
Literacy Wizard of elea
Memorization Wizard of elea
Alchemy Wizard of elea
Anatomy Mercenary archer, Sheep, Chicken, Spider, Ent
Gardening Farmers, Ents, Little Boy
Cooking Rogue wizard, Farmers
Gene Engineer Nurse
Magic Capacity Mercenary wizard, Mandrake
Traveling Little girl
Riding Mercenary archer, Rabbit
Control Magic Fallen soldier, Mercenary wizard, Mercenary archer
Negotiation Gangster, Public performer, Thief
Investing Little girl
Performer Public performer
Swimming Flying frog, Hermit crab


  • Flying frog, as swimming and fishing are good skills to get on pets, it might be useful to start a breeding program of flying frogs, and due to their high breed power, you don't need to breed them that long.


In Omake and its child variants, a shining donor, such as Gold bell, will result in the recipient receiving the shiny appearance. This has no other effect besides aesthetics.

Trained skill[]

You may learn Gene Engineer from the trainers in Port Kapul and Palmia.



  • None


  • #gene engineer may increase Gene Engineer by 1 level and train its potential, but may raise Greater Evasion instead.
  • gene m will create a gene machine; this will only work in wizard mode.

Elona Mobile[]

  • In mobile, Gene Engineering is a Magic stat based skill.
  • Gene Engineer can be trained by searching Machine Fragment piles, found in Fort type random dungeons.
  • In addition to the Gene Engineering machine you receive from a quest, there is a machine in Vernis.
  • Any unit can donate a part if it has more of a part than the target but the donation is not guaranteed.
  • The skills a unit can give are the skills that unit has, which are based on its race and class. The rare exceptions from this are units that can't be found in the world (gacha or exclusive packs).
  • All units start with some skills (anatomy, faith, greater evasion, weapon skills and others) so those will be ignored from the list bellow, since everyone can donate but nobody needs them.

Table of Skills[]

Skill Donor
Alchemy Mushroom Race

Wizard Class

Barrier Eulderna, Imp, Asura, Cat, Metal, Dog, Bat, Dinosaur & Quickling Races.

Pianist, Wizard & Claymore Classes.

Blacksmith Goblin Race.

Claymore Class.

Bless Angel Race.

Priest Class.

Carpentry Ent, Elea & Giant Race.
Detection Vampire & Eye Races.

Gatherer Class.

Disarm Trap Ghost, Machine, Mount & Crustacean Races.
Dual Wield God Pet & Asura Races.

Thief Class

Elemental Channel Fairy Race.

Summoner Class.

Eye of Mind Goblin, Bear, Beast, Bird, Hand & Minotaur Races.
Fishing Naga, Goblin & Zombie races.

Tourist & Gatherer Classes.

Gardening Karune Race.

Gatherer & Farmer Classes.

Gene Engineer Gwen the Brave & Queen Ridora.
Investing Roran, Frog & Wild Sheep Races
Jeweler Dwarf & Dragon Races.
Literacy Mandrake, Euderna, Imp, Roran, Chess Piece & Yerles Races

Pianist, Wizard, Summoner, Claymore, Warmage, Priest & Gunner Classes

Lock Picking Juere, Machine, Mount & Armor Races
Magic Capacity Elea, Mandrake, Ghost, Vampire, Metal, Chess piece, Mythical Creatures, Mutant & Yith Races.

Wizard & Warmage Classes.

Magic Practice Elea, Euderlena, Rock, Notherner, Lich, Little Fairy & Beetle Races.

Wizard & Warmage Classes.

Marksman Hunter & Gunner Classes.
Memorize Mandrake & Imp Races.

Pianist & Wizard Classes.

Mind Control Mythical Creatures, Dog, Dragon, Spirit & Drake Races

Warmage Class

Mining Rock, Golem & Rat Races

Gatherer Class.

Nature Lore Elea, Mandrake, Mutant & Fairy Races.

Tourist Class

Necromancy Ghost, Ant & Lich Races

Raider Class.

Negotiation God Pet, Juere, Yerles & Yeek Races.

Thief & Farmer Classes.

Performer Juere, Cat, Frog, Bear, Beast, Slime & Zanan Races.

Pianist Class.

Pickpocket Fairy & Vampire Races.

Thief Class.

Psychic Summoner Class
Recovery Little fairy Race.

Pianist, Summoner & Priest Classes.

Riding Rabbit Race.

Pianist & Hunter Class.

Ritual Summoner Class
Secrecy Summoner Class
Shadow Mastery Kobolt Race.

Thief Class.

Tailoring Mushroom Race.

Farmer & Hunter Classes

Two-Hand God Pet & Notherner Races.

Claymore & Warrior Classes.

Weight Lifting Angel, Karune & Golem Races.

Pianist Class.