Pathfinder Crafting and Alchemy Rules Explained

Pathfinder Second Edition (PF2e) includes a dedicated mechanical framework governing the creation of items, consumables, and alchemical goods — separate from the general economy rules and tightly integrated with the proficiency rank system. This page covers how crafting and alchemy function mechanically, which classes and skill choices interact with these systems, the scenarios where crafting decisions become meaningful, and the boundaries that separate general Crafting from the Alchemist class's dedicated alchemy subsystem.

Definition and scope

Crafting in PF2e is governed by the Crafting skill, one of 16 skills in the game's core framework (described in full at Pathfinder Skill System Explained). At minimum, a character must be Trained in Crafting to attempt to create most items during downtime. The Crafting skill is linked to the Intelligence ability modifier.

Alchemy occupies a distinct position within PF2e. While any character with Crafting proficiency can create alchemical items using the standard Craft activity, the Alchemist class — one of the 21 base classes published in Paizo's Player Core — has exclusive access to Quick Alchemy and Advanced Alchemy, which allow the creation of alchemical items during encounters or at the start of each day, respectively, without performing the full downtime Craft activity. This distinction separates the Alchemist from all other classes mechanically. Characters interested in the broader crafting landscape should also review the Pathfinder Resonance and Magic Items reference, which covers item activation and invested limits that interact with crafted magic items.

The Craft activity operates in downtime mode — one of PF2e's three play modes (encounter, exploration, downtime) described at Pathfinder Exploration and Downtime Modes. General crafting is not a combat or exploration action and cannot produce items mid-adventure without specific class features.

How it works

The standard Craft activity follows a structured sequence:

1. Prerequisites: The character must be Trained (or higher) in Crafting, must have a formula for the item (either from the Alchemist's formula book, the Crafting skill feat Magical Crafting, or a purchased formula), and must have access to raw materials worth at least half the item's Price.
2. Time investment: The minimum crafting time is 4 days for most items. Each day of crafting counts as a full downtime day.
3. Skill check: At the end of the minimum period, the crafter attempts a Crafting check against the item's crafting DC (based on item level, not character level). The degree of success — Critical Success, Success, Failure, or Critical Failure — determines whether materials are consumed, partially recovered, or lost entirely. The four degrees of success framework is covered at Pathfinder Critical Hits and Success Degrees.
4. Cost reduction through continued work: After the initial 4-day period, continuing to craft for additional days allows the crafter to reduce the remaining cost, at a rate of the crafter's level × 2 silver pieces per additional day (based on the character's Proficiency rank modifier in Crafting).
5. Formula access: Formulas are not automatic. The Alchemist gains a formula book and can expand it; other characters must research or purchase formulas. The Inventor general feat (requiring Master in Crafting) allows reverse-engineering an item into a formula at the cost of destroying it.

Alchemist-exclusive mechanics operate differently:

• Advanced Alchemy: At the start of each day, the Alchemist creates a number of alchemical items equal to their advanced alchemy limit using batches of infused reagents — a class resource that refreshes daily. No check, no gold cost, no time investment beyond rest.
• Quick Alchemy: As a single action during play, the Alchemist spends 1 batch of infused reagents to create 1 alchemical item they have a formula for. Items created this way are unstable and expire at the start of the next turn.

This creates a meaningful contrast: Quick Alchemy items are single-use tactical resources; Craft activity items are permanent goods with real economic value.

Common scenarios

Adventuring party without an Alchemist: Any character Trained in Crafting can produce alchemical items during downtime — alchemical bombs, elixirs, poisons — at half cost if materials are available. A fighter with Trained Crafting can stockpile lesser acid flasks between adventures without requiring an Alchemist in the group.

Alchemist managing reagent economy: An Alchemist at level 5 has a limited daily reagent pool. Spending reagents on Advanced Alchemy reserves (pre-made items) versus conserving them for Quick Alchemy during combat is a resource management decision specific to this class. The Perpetual Infusions class feature (available at level 7) grants unlimited Quick Alchemy access for 2 specific lower-level item types, partially alleviating reagent pressure.

Crafting magic items: Requires the Magical Crafting feat (Trained in Crafting) and the appropriate spellcasting proficiency or access. A wizard crafting a Wand of Burning Hands must have the Burning Hands spell in their repertoire or prepared list — this links crafting directly to the Pathfinder Spell System Overview.

Downtime in Pathfinder Society play: Organized play scenarios award Downtime Days between sessions. Crafting during Pathfinder Society play operates under modified cost and availability rules governed by the Pathfinder Society Guide, published by Paizo Inc.

Decision boundaries

Crafting skill investment vs. purchasing: The Craft activity is economically efficient only when the crafter has formula access, available downtime, and raw materials. In campaigns with limited downtime or high item availability, the Pathfinder Currency and Economy Rules often make purchasing more practical than crafting for non-Alchemist characters.

Alchemist vs. non-Alchemist alchemy: The Alchemist is the only class with no-cost daily alchemy. Non-Alchemist characters using Crafting to produce alchemical items pay half the item price in materials and invest downtime. The Alchemical Crafting feat (Trained Crafting, no class restriction) unlocks formula access for alchemical items but does not grant Advanced Alchemy or Quick Alchemy — those remain class-exclusive.

First Edition vs. Second Edition crafting: Pathfinder First Edition used a simpler Craft skill check model without the day-by-day cost reduction structure. PF2e's system is more granular, tying crafting output directly to proficiency rank and item level rather than a flat DC roll. A comparison of edition-level mechanical differences is available at Pathfinder 1E vs 2E Comparison.

Formula acquisition pathways: Paying for a formula (standard cost listed in the Gamemastery Guide published by Paizo Inc.) versus using Inventor to destroy an item for its formula represents a cost-versus-resource tradeoff. At high item levels, destroying a rare item to acquire its formula may be the only viable route, since formulas for uncommon and rare items are not available for general purchase.

For broader context on how these mechanics slot into the game's overall framework, the conceptual overview of how Pathfinder works maps crafting and downtime into the full play structure. The complete system reference — covering all item categories that intersect with crafting outputs — is indexed at Pathfinder Authority.

References

• Paizo Inc. — Official Publisher of Pathfinder — Publisher of the Player Core, GM Core, Gamemastery Guide, and all official PF2e rules texts governing crafting and alchemy.
• Pathfinder Second Edition Player Core (Paizo) — Primary rules source for the Crafting skill, Alchemist class features (Advanced Alchemy, Quick Alchemy), and formula acquisition rules.
• Pathfinder Society Guide (Paizo) — Governs Downtime Day allocation and crafting restrictions in organized play scenarios.
• Paizo Gamemastery Guide — Source for formula pricing, item level crafting DCs, and uncommon/rare item availability rules.
• Archives of Nethys — Official Pathfinder Reference Document — Publicly maintained, Paizo-authorized rules compendium covering the Craft activity, all alchemical item entries, and feat prerequisites.