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Prontera Underground Waterway

A level 59+ party dungeon — help the Underground Facility Manager clean out the culvert, and smash the eggs the Ancient Golden Thief Bug lays everywhere. Drops the Subjugation Team Ring and Boots.

  • Base Lv. 59+
  • Party only
  • Modes: Normal / Hard
  • Once a day, reset at 04:00 UTC
  • Korea referenceBased on the Korean server; not confirmed on Global yet.

Most details on this page come from the Korean server's official notices and have not been checked on Global yet.

Entrance NPC

Minimap of Prontera Field (prt_fild05) with pins: 1 Underground Facility Manager
Prontera Fieldprt_fild05

  • Underground Facility Manager

    By the culvert entrance west of Prontera (name from the Global client's quest text, position from its navigation data)

    /navi prt_fild05 265/208

How to enter and play

  1. Talk to the Underground Facility Manager on prt_fild05, pick Normal or Hard mode and enter with your party.

  2. It's a clean-up run — clear out the monsters in the culvert for the manager.

  3. The Ancient Golden Thief Bug lays eggs all over — destroy them quickly or the run gets much harder.

  4. Open the treasure box after the clear; a big enough party gets more.

Monsters

  • Ancient Golden Thief Bug*Boss

    Lv. 60 · HP 1,200,000

    Insect · Fire 2 · Large

  • Culvert Giant Thief Bug*

    Lv. 60 · HP 3,330

    Formless · Dark 1 · Medium

  • Culvert Thief Bug*

    Lv. 60 · HP 200

    Insect · Neutral 3 · Small

  • Old Thief Bug Egg*

    Lv. 60 · HP 10

    Insect · Dark 1 · Small

    Laid by the boss — destroy them fast

Names marked * are our translations from the Korean notice; the Global names may differ.

Rewards

"×0–1" means you may get none.

Gear and enchants

Subjugation Team set

Korea referenceBased on the Korean server; not confirmed on Global yet.

The first Memorial Dungeon set, for every job from Lv. 60 — the Shoulder Belt and Armor come from Orc's Memory, the Ring and Boots from Prontera Underground Waterway.

Set bonus

Wear all 4 pieces

Client dataFrom text in the Global game client.
  • ATK +15
  • MATK +15

Their refine levels add up to 17 or more — also:

  • After Attack Delay −3% (faster ASPD)
  • Variable Casting Time −5%

Enchant

Enchant at

Enchant Association Staff/navi prt_fild05 251/193

  • One enchant per piece
  • Cost: 100,000 zeny a try
  • Reset: 100,000 zeny (30% chance the item breaks) or 1 Zelstar (always safe)

Every piece

  • STR+1/+2
  • AGI+1/+2
  • VIT+1/+2
  • INT+1/+2
  • DEX+1/+2
  • LUK+1/+2
  • MaxHP+50/+100/+200
  • DEF+15
  • MDEF+2
  • FLEE+3
  • CRI+1

Subjugation Team's Armor at +9 or higher

Everything in “Every piece”, plus

  • MaxHP+300/+400

  • Swordsman's Essence Lv.1

    Magnum Break costs 10 less SP · every 2 levels of Bash, After Attack Delay −1%

  • Merchant's Essence Lv.1

    ATK +2 per level of Discount · every 2 levels of Overcharge, After Attack Delay −1%

  • Thief's Essence Lv.1

    ATK +30 for Thief jobs · every 2 levels of Steal, After Attack Delay −1%

  • Mage's Essence Lv.1

    Cold Bolt, Fire Bolt and Lightning Bolt +20% damage · every 2 levels of Fire Wall, Variable Cast Time −1%

  • Acolyte's Essence Lv.1

    Heal, Increase Agility and Blessing cost 15% less SP · every 2 levels of Heal, healing +1%

  • Archer's Essence Lv.1

    Double Strafe costs 5 less SP · bow damage +1% per level of Vulture's Eye

One option per piece, rolled at random from the list. Job essences can only come up when you enchant the armor at +9 or higher.

Where this set’s details come from

Hard-mode accessories

Korea referenceBased on the Korean server; not confirmed on Global yet.

Fifteen gems from a dungeon's hard mode plus 10 Mithril make a ring or earring for any job from Lv. 50. They can be refined, with extra bonuses at +7 and +9.

  • Cursed Emerald EarringMade fromCursed Emerald ×15Mithril ×10Cursed Emeralds drop in Orc's Memory hard mode
  • Shimmering Opal EarringsMade fromShimmering Opal ×15Mithril ×10Shimmering Opals drop in Prontera Underground Waterway hard mode
  • Ring of Blue OathMade fromSapphire of the Blue Sea ×15Mithril ×10Sapphires of the Blue Sea drop in Izlude hard mode (not on Global yet)
  • Red Oath RingMade fromRuby Soaked in Blood ×15Mithril ×10Rubies Soaked in Blood drop in Ant Hell and Sunken Ship hard mode (neither is on Global yet)
Made at

Mysterious Artisan/navi morocc_in 76/167

Where this set’s details come from

Expedition set

Korea referenceBased on the Korean server; not confirmed on Global yet.

The step after Subjugation Team, from Lv. 70. Upgrade a Subjugation piece with 50 Faintly Glowing Crystals and Jellostones (made from Poring Village's Jello Fragments); each piece has a physical and a magic version.

Made at

Memorial Craftsman's Workshop/navi prontera 50/227

Set bonus

Wear these 4 together

Client dataFrom text in the Global game client.
  • ATK +20

Their refine levels add up to 21 or more — also:

  • After Attack Delay −5% (faster ASPD)
  • Fixed Casting Time −5%

Wear these 4 together

Client dataFrom text in the Global game client.
  • MATK +20

Their refine levels add up to 21 or more — also:

  • Variable Casting Time −5%
  • Fixed Casting Time −5%

Enchant

Enchant at

Enchant Association Staff (in the workshop)/navi prontera 50/227

  • One enchant per piece
  • Cost: 100,000 zeny a try
  • Reset: 100,000 zeny (30% chance the item breaks) or 1 Zelstar (always safe)

Every piece

  • STR+1/+2
  • AGI+1/+2
  • VIT+1/+2
  • INT+1/+2
  • DEX+1/+2
  • LUK+1/+2
  • MaxHP+50/+100/+200
  • DEF+15
  • MDEF+2
  • FLEE+3
  • CRI+1

Expedition's Armor and Expedition's Robe at +9 or higher: the enchant becomes a job essence of a random job group (Lv.1 or Lv.2). Use the staff member for your own job group for a chance at your group's essences.

Where this set’s details come from

See every gear set by level

Tips

  • The official roadmap calls it Prontera Culvert.
  • The Global client's quest text mentions rats, insects, eggs and bats, so the real dungeon may have more monsters than this list (from the Korean server).

Sources

Korea referenceBased on the Korean server; not confirmed on Global yet.Not checked in-game yet

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