PoE 2 Farrow Guide: Act-by-Act Runeforging Unlock Progress

[NeonDragon]

In Path of Exile 2, the Runeforging system is one of the most important long-term progression mechanics introduced in the Runes of Aldur League (Patch 0.5). It ties directly into a side questline from Farrow, an optional NPC quest chain that many players overlook during the campaign.

Missing these steps can leave you locked out of key crafting tools in the endgame, so understanding the act-by-act progression is worth it even if you’re rushing the story.

This guide breaks down exactly how Farrow’s “Runeseeker” questline unfolds and what each act unlocks for your character.

Act 1: Armor Runeforging and the Verisium Anvil

The Runeforging journey begins in Act 1 after you rescue Farrow, an Ezomyte blacksmith, during an encounter in Blackwater. Once saved, he becomes your main progression NPC for the system.

Runestone Hunt

Farrow sends you to locate three Runestones spread across early zones:

Grim Tangle: Found by following environmental mushroom trails
Hunting Grounds: Random drop while exploring the zone
Ogham Farmlands: Hidden in open crop fields

Once all three are collected, you unlock access to a hidden dungeon instance.

Lost Catacombs

The Runestones reveal the entrance to the Lost Catacombs near the Tree of Souls in Grelwood. Clearing this dungeon and interacting with the Fountain of Liquid Verisium completes the Act 1 chain.

Unlock Reward

You gain access to the Verisium Anvil, which allows:

Reforging non-unique armor pieces
Adding Runic Ward modifiers to gear
Early defensive scaling through crafted armor

A key detail here is item level interaction:

Below level 55: Runic Ward is applied freely
Level 55+: Base defenses are partially sacrificed for stronger Ward scaling

This is your first real step into meaningful gear customization through Runeforging.

Act 2: Runic Inscriptions and Alloy Farming

Act 2 expands Farrow’s questline into resource farming and deeper item modification systems.

Rune Seeker Progression

You continue hunting Runestones in new zones, especially around areas like the Bone Pits. The quest often advances through encounters labeled as preserved witness events, which act as progression checkpoints.

Unlock Reward

Completing Act 2 unlocks:

Runic Inscriptions system
Alloy Currency Rune farming from Ezomyte Remnant encounters
Expanded prefix and suffix manipulation options

This stage is where Runeforging begins to affect actual build optimization rather than just defense upgrades. You start interacting with currency-based rune crafting, which becomes essential for mid-to-late game gearing.

Act 3: Unique Kalguuran Runeforging

Act 3 is where the system starts influencing high-end gear progression.

Hidden Area: Mystic Refuge

Instead of following a linear quest path, Farrow sends you into optional jungle zones to locate a hidden area called the Mystic Refuge.

Once inside, you must:

Speak with Farrow directly in the refuge
Interact with environmental lore objects
Use “Obtain Knowledge” prompts to advance progression
Unlock Reward

This act unlocks Unique Runeforging, which allows:

Upgrading Unique Kalguuran Equipment using Verisium
Modifying or enhancing existing unique item modifiers
Increasing base stats on endgame-defining gear

This is a major milestone because it turns unique items from static drops into upgradeable progression pieces, which can shape entire builds.

Act 4: Ancient Runes and Endgame Weapon Crafting

The final stage of Farrow’s questline takes place in Act 4 on the islands of Ngamakanui.

Logbook Fragment Hunt

Instead of standard quests, you must collect four map fragments scattered throughout the act. These pieces combine into a special logbook encounter.

Final Encounter

Once assembled, you:

Enter the newly revealed logbook area
Clear the encounter fully
Interact with the central table to finalize Farrow’s knowledge

This completes the Runeforging questline.

Unlock Reward

The final system unlock includes:

Endgame Weapon Runeforging
Access to 13 Ancient Runes
Rune socketing for skill-altering effects and major stat scaling

Ancient Runes are the peak of the system, often providing build-defining effects that go beyond standard modifiers, including skill behavior changes and massive offensive or defensive boosts.

Farrow’s questline in Path of Exile 2 is easy to ignore, but it quietly controls one of the most powerful crafting systems in the game. Each act builds on the last, gradually turning Runeforging from a basic armor upgrade tool into a full endgame customization system.

If you plan to push into high-tier content, completing every step of this chain isn’t optional—it’s part of your build foundation.