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Job Base(s): Merchant
Job Type: 2-2
Job Level: 50
Race: Human
Changes At: Al De Baran
Number of Skills: 15
Total Skill Points: 82
Total Quest Skills: 1
Job Bonuses
+5 +6 +3 +7 +9 +0


The Alchemist is a class which optimizes Potion Creation and Homunculus, as well as various other potion-related skills. They are a class which work for the benefit of their friends and strike terror into the hearts of their foes (armor).

Jobchange Guide

See Alchemist Job Change Guide for detailed information.

Changing into an Alchemist from a Merchant requires the player to complete a number of tasks:

  • Item Collection
  • Written Test
  • Transformation Experiment

After completing these tests, the player will be transformed into an Alchemist.


Cart Revolution Build

  • STR: 70-90
  • AGI: 30-50
  • VIT: 70-90
  • INT: 1+
  • DEX: 50
  • LUK: 20-40

This build is centered around the Cart Revolution skill for AoEing groups of monsters at once. ASPD does help Cart Revolution spam rate, especially when pushing monsters against walls. Mammonite still provides high single target damage.

AGI Build

  • STR: 70-90
  • AGI: 80-99
  • VIT: 50-70
  • INT: 1
  • DEX: 40-60
  • LUK: 20-40

The AGI build is is usually recommended for newer players without funds. They have high ASPD and FLEE for quick single target killing, so it uses minimal HP / SP Healing Items. Their main method of attack is melee-ing single monsters, and sometimes utilize autocast gear. Alchemists do not have skills that increase flee rate (like a Thief's Improve Dodge, so it is recommended to use at least SOME sort of FLEE gear (such as Falcon Muffler or Whisper carded garment).

Useful Gear for AGI Builds:

Tank/Aid Potion Healer Support Build

  • STR: 40+
  • AGI: 70+
  • VIT: 70-90
  • INT: 1+
  • DEX: 30-50
  • LUK: 20-40

Pure Homunculus Killer/AFKemist Build

  • STR: 1
  • AGI: 90+
  • VIT: 90+
  • INT: 1
  • DEX: 30-50 (for leveling up until getting a Homunculus)
  • LUK: 20-40

Acid Terror/Bomb build

  • STR: 80-90
  • AGI: 1+
  • VIT: 70-90
  • INT: 1
  • DEX: 30-50
  • LUK: 20-40

This build is for rich players with a lot of funds that want to level faster.


  • STR: 1
  • AGI: 1
  • VIT: 1
  • INT: 46
  • DEX: 90
  • LUK: 94

This has one of the highest success rates for Potion Creation, but requires a lot of leeching. LUK may be preferable to DEX as most Gypsies and Minstrels have high DEX but do not have any LUK. Thus, when Marionette Control is used with this build, the Alchemist will receive a significant boost in DEX from the Gypsy or Minstrel, and the Alchemist's own LUK will further increase success rates for brewing.

This stat build is NOT recommended if you have Marionette Control available to you to boost stats. If you are using Marionette Control you can reasonably expect a +45 boost to DEX for most builds with 90 DEX.
If you have access to Gypsy or Minstrel on your server you really shouldn't even be looking at the stat builds for the Alchemist as the job level of 70 for the biochemist greatly increases the success rate for potion creation.


Eden Group Equipments Quests

Main article: Eden Group Equipments Quests

Eden Group Equipment is free and a great place to start for gear to use. The One Handed Sword is a good weapon and generally a good choice for an Alchemist and their future classes' use.

General Equipment Recommendations

Main article: Equipment

The Equipment article lists some general all purpose equipment that is useful through the PVM phase and also for endgame use as well.

Third Class Compatible Equipment

Main article: Geneticist Equipment

It is recommended to look at the Equipment recommendations for the Third Class job to see what equipment to strive for, rather than to spend a lot of money on a piece of equipment that will not be used in the future as a third class. However, some equipment may have a high level requirement, or are transcendent only.


After considering what requirement skills have (some skills can only be used with certain weapon types), the Weapon Search tool within the iRO Wiki DB site is very helpful. Generally, for physical classes (both melee and ranged), something with high ATK is best. For magic classes, something with high MATK is best.

Link to the iRO Wiki DB Weapon Search:

The weapon used is primarily based upon one's build. For example, an Alchemist prioritizing AGI and ASPD should generally use Swords. Those preferring to maximize damage are better suited with Axes. The following is a listing of the most common weapons and why they are beneficial:

Common Weapons

Swords are some of the most common among Alchemists primarily due to the relatively low ASPD delay as well as their moderate ATK. However, the player will be unable to benefit from having a Blacksmith partner, which is relatively rare. Also, because of the skill Axe Mastery it is evident that one will be able to bring out optimal damage from an Axe. However, Axes have a large ASPD delay, which means they swing slow but hard. On the positive side, players using Axes can not only benefit from Axe Mastery but also a Blacksmith partner.

  • 1126.png Saber [3]: A common weapon generally used with damage cards. (ATK 115)
  • 1130.png Nagan: A sword that deals extra damage with Level 5 Double Attack and it's rather light, but it lacks of Card Slots. (ATK 120)

Spell Weapons

5% chance to freeze the enemy while attacking, 0.1% chance to get frozen while attacking.

Homunculus System

Main article: Homunculus System

The Homunculus is a pet that kills, supports, and does everything for its master. An Embryo, from which a Homunculus will be born, can be created via Prepare Potion with the following materials purchasable from the Al de Baran Material Seller, in the Alchemist guild alde_alche35179:

Once an Embryo has been created (or purchased from another player), use the skill Call Homunculus to receive 1 of 4 types of Homunculus. The Homunculus received is random, and each type has two sprite variations. Much like Cute Pets, Homunculi need to be fed or they will leave their owner:

Class Data


Below are listed the skills that are unique to the Alchemist class. For more information about Merchant skills, click here.

Skill Description Levels Type
Acid Terror.png Acid Terror
Throws an Acid bottle at a foe to deal 200~1,000% physical damage. May break their armor and/or cause Bleeding status by a chance. 5 Offensive
Aid Potion.png Aid Potion
Throws a Red, Orange, Yellow, White or Blue potion at an ally or yourself for 110~150% effectivness of its HP or SP recovery. 5 Supportive
Alchemical Weapon.png Alchemical Weapon
Protects your or ally's weapon from being stolen or broken for 1~5 minutes. Requires a Glistening Coat. 5 Supportive
Axe Mastery.png Axe Mastery
Increases ATK +3~30 with axes and swords. 10 Passive
Biochemical Helm.png Biochemical Helm
Protects your or ally's headgear from being stolen or broken for 1~5 minutes. Requires a Glistening Coat. 5 Supportive
Bomb.png Bomb
Throws a Bottle Grenade at the ground to create a 3x3 cell fire, dealing 60~300% Fire property physical damage every 0.5 seconds to enemies that step into it. May break their weapons by chance. 5 Active
Potion Research.png Potion Research
Increases the chance to successfully brew potions by 1~10%. Also, increases effectiveness of potions you drink by 5~50%. 10 Passive
Prepare Potion.png Prepare Potion
Create potions from herbs and various other ingredients by 3~30% chance. 10 Supportive
Summon Flora.png Summon Flora
Creates up to 5~1 friendly plant-type monsters on the ground. Requires a Plant bottle. 5 Supportive
Summon Marine Sphere.png Summon Marine Sphere
Creates a Marine Sphere (HP 2,400~4,000) on the ground that will explode on taking damage. Requires a Marine Sphere Bottle. 5 Supportive
Synthesized Shield.png Synthesized Shield
Protects your or ally's shield from being stolen or broken for 1~5 minutes. Requires a Glistening Coat. 5 Supportive
Synthetic Armor.png Synthetic Armor
Protects your or ally's armor from being stolen or broken for 1~5 minutes. Requires a Glistening Coat. 5 Supportive

Quest Skills

Skill Description Levels Type Job Level Req. Quest
Bioethics.png Bioethics
Allows the learning of Homunculus Skills 1 Passive N/A Bioethics Quest
The Alchemist Skill Quests give Alchemists access to the Homunculus skill tree by granting the Bioethics skill. In addition, it allows them to obtain a new Creation Guide to create Elemental Resistance Potions using their Prepare Potion skill.

Homunculus Skills

Skill Description Levels Type
Call Homunculus.png Call Homunculus
Creates a new Homunculus from an Embryo or summons an existing Homunculus that was stored by using the Vaporize skill. 1 Supportive
Homunculus Resurrection.png Homunculus Resurrection
Revives a Homunculus that has been defeated in battle. 5 Supportive
Vaporize.png Vaporize
Stores the owner's Homunculus. 1 Supportive

Soul Link

For more info, see the Alchemist Spirit page.
Skill Description Levels Type
Aid Berserk Potion.png Aid Berserk Potion
Allows to throw Berserk Potions to friendly targets regardless of their classes. 1 Supportive
Spiritual Potion Creation (variant 1).png Spiritual Potion Creation (variant 1)
Attempts to create 200 White Potions rapidly. 1 Active
Spiritual Potion Creation (variant 2).png Spiritual Potion Creation (variant 2)
Attempts to create 200 Condensed White Potions rapidly. 1 Active
Spiritual Potion Creation (variant 3).png Spiritual Potion Creation (variant 3)
Attempts to create 100 Alcohols, 50 Acid Bottles and 50 Bottle Grenades rapidly. 1 Active

Unimplemented Skills

These skills were part of the original homunculus skill tree:

Job Bonuses

The Levels in which you receive a certain bonus:

Stat\Amount +1 +2 +3 +4 +5 +6 +7 +8 +9
STR 6 15 26 34 43
AGI 11 14 40 45 49 50
VIT 20 31 36
INT 1 9 17 23 24 29 38
DEX 2 3 8 13 19 21 25 28 32


Equip Attack Speed From Merchant
Bare Handed 156 0
Shield -4 +1
Dagger -10 +2
Sword (One Handed) -5 +7
Axe (One Handed) -5 +3
Axe (Two Handed) -12 +3
Mace -5 +5
ASPD Potions Usable
645.png Concentration
656.png Awakening
657.png Berserk

External Links