How do you farm Soulstone - Nightmare?

The Drop Finder tool filters every campaign stage whose recommended level brackets Arcana materials. Soulstone - Nightmare's detail page lists the top farming stages directly.

What is Soulstone - Nightmare used for in the Cube?

Most materials flow into Cube Craft, Synthesis or Offering. The exact consuming function is linked from this page's "Used by" panel.

Can Soulstone - Nightmare be traded on the Steam Market?

Material tradeability depends on the grade. Since patch 1.01.00, Celestial / Divine / Cosmic materials can be listed; lower grades are restricted. The Steam Market Guide has the full current matrix.

Materialarcanav1.00.26

Soulstone - Nightmare

Soul Stone

The Soul Stone used for Nightmare act-boss access; failed clears do not consume it.

Key attributes

Game ID: 190002
Difficulty: Nightmare
Use: Act boss entry

Notes

Soulstone - Nightmare is the Soul Stone (game ID 190002) spent to attempt a Nightmare act boss (Act boss entry). It is consumed only on a successful clear, so a failed run keeps the stone — useful when you are still learning the fight. Each difficulty tier maps to its own Soul Stone and its own act-boss access, so stock the one that matches the difficulty you are pushing.

Soulstone - Nightmare Farming Shortlist & Cube Uses

Soulstone - Nightmare belongs to the Soul Stone material family. Use it in the Horadric Cube to upgrade equipment tiers and forge high-rank runes. Check the Drop Finder to match your current party level with the best yielding stages.

Stages worth testing for this material

These campaign stages have the closest Recommended Level to this material's rarity band. A close level match is an estimate, not a confirmed drop — verify in the live patch before committing.