Alchemy

 is a crafting system in Ragnarok Online that allows players to brew potions and craft bombs that can do a range of effects from recovering HP and SP to damaging enemies. Only Alchemist players are able to brew potions and craft bombs.

In RO, has a success rate which scales with the strength of the potion being brewed. Typically, weaker potions have a higher success rate than stronger potions. Investing stat points into DEX and LUK will increase brewing success rate in general. For bombs, success rates are applied to each individual bomb instead of the whole batch.

In addition to having the actual ingredients, Alchemist players must also have the corresponding manual in their inventory in order to brew potions and craft bombs. The manual will not be consumed during the crafting process.

Pharmacy
The following are potions that can be produced with the Pharmacy skill.

Special Pharmacy
The following are potions that can be produced with the Special Pharmacy skill.

Bomb Creation
The following are bombs that can be produced with the Create Bomb skill.

Alchemist Ranking
Alchemist Ranking is a system exclusive to RO in which players are ranked based on who can create the most potions. Alchemist Ranking can be checked via usage of the "/alchemist" command in-game. Potions made by an Alchemist class who is in the top 10 list will receive a 50% bonus to their potency. This does not apply to potions used via Potion Pitcher or Slim Potion Pitcher.
 * Rank Point +1: 3 Slim Potions created in a row without failure.
 * Rank Point +3: 5 Slim Potions created in a row without failure.
 * Rank Point +10: 7 Slim Potions created in a row without failure.
 * Rank Point +50: 10 Slim Potions created in a row without failure.

Patches

 * Patch (2019 May 08)
 * Fixed an issue with crafted items bearing character names showing that it was changed from previous character names.
 * Patch (2005 Mar. 29)
 * Ranking system for manufacturing reputation of Merchants' secondary job class is applied.
 * ★ Alchemist & Creator ★
 * Ranking POINT +1: Slim potion production success for 3 consecutive times
 * POINT +3: Slim potion production success for 5 consecutive points
 * POINT +10: Slim potion production success for 7 consecutive points
 * Ranking POINT +50: You can always see your ranking change every 10 consecutive potion making using the /alchemist command, and potions made by Alchemist/Creator at +10 will be 50% more effective. (The effect does not improve when used in a potion or slim-featured skill.)