Underwater City/Guide
From Melvor Idle
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This content is part of the Atlas of Discovery Expansion.
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| This page was last updated for (v1.2.2). |
This is a Barrier dungeon introduced with the 
Atlas of Discovery Expansion, there is a general guide to this dungeon and a more in-depth look into Barrier combat in general in this guide. This page will go deeper into combat options, including when 
Throne of the Herald Expansion is owned and already completed.
This guide is not meant for optimal kills per hour but instead focuses on easily obtainable ways ranging from just passed God Dungeons to having beaten
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Throne of the Heraldto clear the dungeon effectively.
Requirements
- Complete
Cult Grounds - Discover
Melantis 
Damage Reduction Potion IV
Recommended
- Error creating thumbnail: File missingLevel 99 for the
Relic Shield for Set 2 - Error creating thumbnail: File missingValor
- Error creating thumbnail: File missingBattleheart
- Error creating thumbnail: File missingLevel 100,Error creating thumbnail: File missingLevel 100
The enemies, and especially the
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Nagaia hit very hard in this dungeon. A lot of damage reduction is required in order to idle this dungeon without dying. Alternatively, the player can return after having progressed through the Throne of the Herald expansion. Having more hitpoints or other damage reducing and damage inflicting bonusses can greatly speed up the clear times of this dungeon. Set 1 clears the dungeon roughly 23 times per hour. Set 2 clears it roughly 6 times per hour. (You can swap the weapon & summons in Set 2).
The Relic Shield is preferred over the 
Earth Layered Shield, because it offers 4% more damage reduction at
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Level 90 and above. Alternatively the 
Devouring Barrier Shield can be used, once the upgrade item has been obtained from this dungeon. However, the player should check if the 4% reduction in DR doesn't result in death. The 
Eradicating Gloves (m) should be equipped immediately when obtained from this dungeon.
Clearing the Underwater City dungeon provides 1 
Barrier God Shard every time it is cleared. These can be used to upgrade (B) god armours into their respective (C) armours. These can then be used to very effectively clear
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Crystal Depths for 
Crystal Binding Dust if the player hasn't already done this.
Below are 2 sets, unlike the previous dungeons, you can't mix and match this dungeon. Set 1 is for post-TotH clears. Set 2 is for clears just before or after IDE.
Set 1 requires
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Level 120.
Set 2 requires a minimum of
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Level 100.
| Item Slot | Set 1 | Set 2 |
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| Head |  Hood of Shade Summon |
 Terran God Helmet (B)
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| Body |  Terran God Platebody (B) |
Terran God Platebody (B)
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| Leggings |  Terran God Platelegs (B) |
Terran God Platelegs (B)
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| Boots |  Terran God Boots (B) |
Terran God Boots (B)
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| Hands |  Gloves of Greater Shade Summon |
 (B) Ancient D-hide Vambraces
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| Cape |  Ancient Infernal Cape |
Ancient Infernal Cape
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| Neck |  Amulet of Curse Totem Summon |
 Lesser Summoning Amulet
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| Passive |  Knight's Summoning Defender |
 Barrier Burn Shield
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| Ring |  Ring of Phantom Summon |
 Summoner's Blessed Ring
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| Gem |  Siphoning Barrier Gem |
Siphoning Barrier Gem
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| Weapon |  Agile Wings Rapier |
 Infernal Claw
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| Shield | Earth Layered Shield/ Devouring Barrier Shield |
Relic Shield
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| Consumable |  Melee Hinder Scroll |
Melee Hinder Scroll
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| Summons |  Spider /  Spectre |
 Tortoise / Error creating thumbnail: File missing Dragon
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Prayers:
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Battleheartand
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Valor. Swap to
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Battleheartand
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Battlebornfor Set 2.
Potion: Damage Reduction Potion IV
Point of Interest: 
Dark Waters
The Agility obstacles 11+ are not required, 11 and below are highly suggested (and simulations were done with those active).
Swap
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AgilityObstacle 15 from
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Freezing Raftingto
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Waterfall Crossingif using Set 1.
| Slot | Obstacle | Bonuses |
|---|---|---|
| 1 | Error creating thumbnail: File missing Cargo Net | +3% Global GP (except Item Sales) +2% Fishing Mastery XP |
| 2 | Error creating thumbnail: File missing Monkey Bars | -4% Firemaking Interval |
| 3 | Error creating thumbnail: File missing Pipe Climb | +5% Melee Evasion +5% Melee Max Hit |
| 4 | Error creating thumbnail: File missing Cave Climb | -40 Maximum Hitpoints +5% Ammo Preservation +5% Rune Preservation +5% Melee Max Hit |
| 5 | Error creating thumbnail: File missing Cliff Balance | +20 Maximum Hitpoints +5% Ranged Accuracy Rating +2 Prayer Point Cost for Prayers +5% Magic Accuracy Rating +5% Melee Accuracy Rating |
| 6 | Error creating thumbnail: File missing Lake Swim | +1% Damage Reduction +5% Damage To All Monsters +3% Chance To Preserve Prayer Points |
| 7 | Error creating thumbnail: File missing Boulder Trap | -20% Chance to Preserve Resources in Skills |
| 8 | Error creating thumbnail: File missing Spike Jump | +5% Damage to Monsters in Dungeons +5% Chance To Double Loot in Combat |
| 9 | Error creating thumbnail: File missing Ice Jump | +20 Maximum Hitpoints +5% Food Healing Value +5% Chance to Double Items Globally +10 Mining Node HP +10% Chance to Preserve Resources in Skills |
| 10 | Error creating thumbnail: File missing Dragon Fight | -16% Auto Eat Efficiency -0.3s Monster Respawn Timer |
| 11 | Error creating thumbnail: File missing Forest Maze | -20% Global Accuracy -20% Auto Eat Efficiency +15% Flat Slayer Area Effect Negation +8% Slayer Skill XP +10% Global Slayer Coins (except Item Sales) |
| 12 | Error creating thumbnail: File missing Boulder Balance | -20% Global Accuracy +5% of Maximum Hit added to Minimum Hit -0.1s Attack Interval |
| 13 | Error creating thumbnail: File missing Balance Trap | +10% Agility Interval +5% Chance to Double Items Globally -30% GP gained from Agility |
| 14 | Error creating thumbnail: File missing Freezing Climb | +30% Accuracy Rating +30% Global Evasion -150% GP from Combat -6% Chance To Double Loot in Combat +15% Damage to Monsters in Dungeons |
| 15 | Error creating thumbnail: File missing Freezing Rafting | -10% Cooking Interval +3% Auto Eat Threshold +15% Auto Eat Efficiency -20% base primary resource quantity gained in Farming |
| Pillar | Error creating thumbnail: File missing Pillar of Combat | +10% Ranged Evasion -0.2s Monster Respawn Timer +5% Flat Slayer Area Effect Negation +10% Melee Evasion +10% Magic Evasion +5% of Maximum Hit added to Minimum Hit +10 Flat HP Regen |
| Elite Pillar | Error creating thumbnail: File missing Elite Pillar of Conflict | +10% Lifesteal +35% Flat Slayer Area Effect Negation +25% Chance To Preserve Prayer Points -3 Prayer Point Cost for Prayers +50% Hitpoint Regeneration +350% GP from Combat |
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| Melvor Idle version v1.3.1 (Released: 30th October 2024) |
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| Skills: Error creating thumbnail: File missing Farming • Error creating thumbnail: File missing Township • Error creating thumbnail: File missing Woodcutting • Error creating thumbnail: File missing Fishing • Error creating thumbnail: File missing Firemaking • Error creating thumbnail: File missing Cooking • Error creating thumbnail: File missing Mining • Error creating thumbnail: File missing Smithing • Error creating thumbnail: File missing Thieving • Error creating thumbnail: File missing Fletching • Error creating thumbnail: File missing Crafting • Error creating thumbnail: File missing Runecrafting • Error creating thumbnail: File missing Herblore • Error creating thumbnail: File missing Agility • Error creating thumbnail: File missing Summoning • Error creating thumbnail: File missing Astrology • Error creating thumbnail: File missing Alternative Magic • Error creating thumbnail: File missing Cartography • Error creating thumbnail: File missing Archaeology • Error creating thumbnail: File missing Harvesting
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| Other: Error creating thumbnail: File missing Beginners Guide •  Guides • Error creating thumbnail: File missing Bank • Error creating thumbnail: File missing Combat • Error creating thumbnail: File missing Mastery • Error creating thumbnail: File missing Money Making • Error creating thumbnail: File missing Shop •  Easter Eggs •  Pets • Error creating thumbnail: File missing Golbin Raid • Error creating thumbnail: File missing Full Version • Throne of the Herald •  Atlas of Discovery • Error creating thumbnail: File missing Into the Abyss
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| Reference Tables: Items, Equipment, Experience Table, Upgrading Items, Combat Areas, Slayer Areas, Dungeons, Strongholds, The Abyss, Monsters |
