Alchemist Build Guide — Acid Terror and Homunculus

Alchemist is the chemistry-based crafting and combat class in Ragnarok: The New World, debuting in the September 2026 update alongside Bard and Dancer. Alchemists fight with acid-based skills that ignore armor, summon Homunculus pets that fight alongside them, and access powerful potion mastery that boosts party sustainability.

The class tree progresses through Alchemist → Biochemist → Creator, with each tier adding homunculus upgrades, stronger acid formulas, and craft-based passives. Read the full breakdown in the embedded video below.

Acid Terror is Alchemist's signature damage skill. Unlike physical attacks that scale with ATK and enemy DEF, Acid Terror deals fixed damage based on INT and skill level that bypasses a significant portion of enemy armor. This makes Alchemist strong against high-DEF targets like Knights and tanks that other DPS classes struggle to crack.

Acid Terror also applies Armor Down debuff, reducing the target's DEF further for the entire party. In coordinated PvE, bringing an Alchemist amplifies physical DPS windows significantly.

Homunculus is Alchemist's unique pet system — a summoned creature that fights alongside you, absorbs aggro, and provides utility effects. Homunculus types include:

• Amistr — high HP and tanking; draws enemy attention away from you
• Filir — flying mobile attacker; provides burst damage assist
• Lif — support-focused; heals or buffs you during combat
• Eira (higher tiers) — arcane attacker; magic damage dealer

Homunculus scales with your INT and its own level. Invest in raising it alongside your own stats — a well-leveled Homunculus adds significant DPS and survival.

Primary: Intelligence for Acid Terror damage and Homunculus scaling. Secondary: Dexterity for hit rate on acid skills. Tertiary: Vitality for survivability in extended fights.

Alchemist does not need STR or AGI as heavily as melee classes. Focus on INT for damage, DEX for accuracy on bosses, and VIT as a buffer.

Beyond Acid Terror, Alchemist provides valuable party utility through potions:

• HP Boosting Potions — increases max HP temporarily for the entire party
• SP Recovery Potions — faster mana sustain for casters
• Acid Bomb — AoE acid damage for mob packs

In parties, Alchemist fills a unique niche: strong single-target damage against armored enemies, plus potion support that benefits casters and supports. Pair with Priest for a complete sustainability package.

Biochemist (job 2) upgrades Homunculus with stronger forms and adds Biochemical Field — a ground-zone that amplifies acid damage for all party members inside.

Creator (job 2-2) is the peak of the Alchemist tree, gaining Full Chemical Protection (immunity to certain debuffs), upgraded acid formulas, and a Homunculus that can perform tank rotations alongside the player.

For F2P players, Alchemist is a strong investment: Acid Terror damage does not require expensive refine to be effective, and Homunculus provides free DPS that scales with INT rather than weapon level.