Sil'dihn Subterrane dungeon guide
Sil'dihn Subterrane source-backed dungeon guide: unlock facts, first-clear prep, local mechanic notes, and related wiki source links.
On This Page
- Dungeon (Variant) quick facts
- Before queueing
- Boss and mechanic notes
- Duty finder and rewards context
- Completion notes
- Verification boundary
Dungeon (Variant) quick facts
An extensive warren of tunnels and waterways stretches beneath the barren lands of Thanalan, but none come now to marvel at this remnant of fallen Sil'dih. Its memories lie undisturbed, festering silently in the dark and the damp. Yet not for much longer. You have come at the personal behest of Nanamo Ul Namo, and together will you throw open the gate to the desert nation's troubled past.
- Category: Dungeon
- First Appearance: Patch 6.25, *Endwalker*
- Level: 90
- Item Level Requirement: 575
- Party Size: flex4
- Required Quest: A Key to the Past
- Entrance: Central Thanalan
- Entrance Coordinates: 16.8,23.6
- Region: Thanalan
Before queueing
Use the quick facts to check level, item level, party size, required quest, entrance, roulette, and time limit before queueing for Sil'dihn Subterrane.
- Repair gear and meet the listed level/item-level requirements.
- Tell the party if it is your first clear.
- Use the local wiki link for exact duty facts and related articles.
Boss and mechanic notes
Sil'dihn Subterrane has local boss notes for: Geryon the Steer, Soapy Sidekick: Silkie, Lifeless Legacy: Gladiator of Sil'dih, Undead Shadowcaster: Zeless Gah, Armed Automaton: Thorne Knight. These notes are pulled from the local wiki and should be treated as source-backed prep unless separately marked as human-reviewed strategy.
- Colossal Strike: Tankbuster.
- Exploding Catapult: Light damage to the entire party and summons several explosive barrels with either a red "burst" design on its top, or a blue "ring" design. The red-topped barrels explode in a large circle around them, while the blue-topped ones explode in a large ring around them.
- Colossal Slam: Cone attack in the direction of a random player.
- Subterranean Shudder: Has various effects depending on which path the party has taken and what decision was made before encountering Geryon.
- Left Path: There will be four drains on both the east and west sides of the arena. The choice of whether or not to clear the pipes affects the attack.
- Cleared Drain: One of the drains will light up cyan, causing water to spill out and knock back players from its location.
- Clogged Drain: Two to four of the drains will light up red, causing mud to spill out and form damaging puddles on the ground for a short duration.
- Center Path: The direction the Bulkhead Handle is turned determines the effect of the attack.
- Turn Left: To the east and west of the arena are vents with fans. One set will begin to spin, indicating that players will be dragged across the arena toward that side.
- Turn Right: To the east and west of the arena are platforms. Boulders will be carried onto them, then roll across the arena in a straight line during the next Exploding Catapult cast, dealing massive damage to players they crush.
- Right Path: Mechanic is based on what fluid bursts from the pipe prior to the boss and is completely random.
- Water: Two opposite quadrants of the arena churn, followed by the other two. The quadrants explode for damage in the order they began churning.
- Total Wash: Unavoidable roomwide AoE that deals high damage.
- Squeaky Right/Left: The boss will attack the arena twice in a conal AoE in front of it, followed by an attack that hits two thirds of the arena based on the side of the arena indicated by the attack, with a safe zone in the opposite third of the arena.
Duty finder and rewards context
Use this section to decide whether the duty belongs in roulettes, high-end queues, mentor roulette, or repeat farming.
- Duty Finder: V&C Dungeon Finder
- Time Limit: 90
Completion notes
After your first clear, check whether the duty has mapping, clear, Blue Mage, loot, music, or collection reasons to return.
- Achievement: Squeaky Clean
- Achievement: Shadows' Past
- Achievement: Hollow Victory
- Achievement: Secrets Of Sil'dih
- Achievement: Mapping the Realm: The Sil'dihn Subterrane
- Achievement: Dig Deep: The Sil'dihn Subterrane
- Music: Main: To the Sun (Piano Collections)
- Music: Mid-Boss: On Blade's Edge
- Music: Final Bosses: Finality
- Music: Secret Final Boss: Heroes Forge Ahead|roll=n
Verification boundary
This page is generated from local TJPedia wiki data. It does not invent missing mechanics, NPC coordinates, loot tables, or current-party-finder strategies. High-end positioning and current-prog tactics still need human review before being labeled as a full strategy guide.
- Source-backed: duty facts, local boss notes, achievements, and music.
- Needs human review: exact high-end progression strategy.
- Use official patch notes for changed requirements or rewards.
Related on TJPedia
Sources
Auto-draft eligible, human review required for volatile guide updates.