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Intro

The world of Mystera is made up of many floors, with the surface map of Galebrook being floor 1. Directly below is floor 2, the Underground, and below that is floor 3, the Deep Cave. These floors can be reached by building stairways.

On the Deep Cave floor you can find an existing hole (or dig one of your own with a shovel) to enter the Underworld, which spans floors 4 to infinity. Each floor is generated when first reached by a player, and then resets every seven days.

Each Underworld floor is a labyrinth of rooms and tunnels with destructable walls. You cannot build stairways in the Underworld, however you can use a shovel for a chance to dig a hole to the next floor down to speed your descent.

The types of monsters found are more dangerous as you descend deeper into the Underworld; however, gem rocks, altars, skeletons of dead players, statues of mercy, chests and more can be found in greater and greater concentrations.

Exiting the Underworld

While each Underworld level is linked by generated stairways, there are no stairways exiting the Underworld itself. Nor can any be built; in order to leave the Underworld you must: use an escape rope (while on the topmost Underworld floor in order to reach the Deep Cave floor and leave from there), use an Escape Lantern, or find a Statue of Mercy.

Escape ropes are crafted, and allow you to travel up one floor each before being consumed. Statues of Mercy are interactive objects that can spawn on all Underworld floors and which teleport you to a random location on the surface. Escape Lanterns, dropped by Flame Demons and Dust Devils, do the same unless you are bound to a Recall Tile.

  • Escape Rope: 20 tinder, 5 silver.
  • Recall Tile: 1 dragon scale, 1 escape lantern, 10 gold


Recall Tiles can be built on the surface and you can walk on them to bind yourself to one of them.

Underworld Recall Tiles

There are also (different) recall tiles in the Underworld, which can randomly spawn on all Underworld floors like Statues of Mercy and other interactive Underworld objects can. If you walk on one you become bound to it and can teleport to a random location on that floor using a Depth Recall potion, significantly shortening return trips to the Underworld.

  • Depth Recall: 1 dragon scale, 1 blue dye, 1 gold


This does not overwrite any Recall Tile on the surface you may be bound to, however; or visa versa.

Exclusive Spawns and Items

Objects

  • Chest: can spawn loot of quality that scales with your questing level and the level of the dungeon.
  • Dark Chest: spawns a small amount of gold, a watcher, a chaos, and a skeleton lord
  • Crystal Rock: a rock which, when mined, can yield gems which are used in Smithing
  • Bone Pile: If a player dies in any way, their remains can be found on the same underworld level as their player level was on death
  • Table: Created for the monsters in the underworld to dine on. Destroy it for wood and more spawns. No, a player probably did not place it and you're not stepping on anyone's toes by destroying it.
  • Altar: something about multiplying items, making you hungry or full, spawning monsters or rarely a dog. wew dog.
  • Fountain: Fully restores your HP, number of uses is random.
  • Statue of mercy: Takes you back to the surface.
  • Underworld recall tile: Reminds you of your position in UW. By using a Depth Recall potion you are able to start at last stepped recall tile.

Traps

Traps cannot be seen until stepped on, triggering their effect.

  • Mud: Slows you for -800 movement speed. Move around or use Caraway (+100 each Caraway) to get rid of the slow.
  • Pitfall: A hole opens up to the next floor below; you'll probably fall in.
  • Spike Trap: Deals some percentage damage of your health when stepped on.

Items

Sometimes found in chests.

  • Blunt Dagger: A comparatively weak weapon.
  • Dark Hero Platemail: Heavy armor.
  • Dark Memento: Assassin/Destruction accessory.
  • Leather Armor: Medium armor.
  • Strange Device: Why do you ask me? :v

Crystal Rock Yields

Stone2 Stone 55%
Gems Gems 20%
Flint Flint 10%
Hematite Hematite 7%
Mal Malachite 4%
Cass Cassiterite 3%
Silver Silver 0.7%
Gold Gold 0.3%

Object Spawn mechanics

Each floor can house a certain number of spawned objects (rocks, altars, fountains, etc.), and once that number is reached, little more will spawn. However, if you break a table, mine a rock, use up a fountain, or otherwise remove something which was spawned, another item can spawn. This does not account for what was used up, meaning that a destroyed table can yield an altar and a used up fountain can yield a regular rock elsewhere in that underworld level.

Monster Spawns

Monsters of any level can spawn at any point in the underworld but will typically stick to the floors outlined in the table. This is a result of abnormal spawns from altars and the "rare spawn mechanic" which will occasionally place a monster from many floors deeper in the underworld in a more shallow floor.


Underworld Mobs

Creature Stats Drops Locations Notes
Water Sprite
Water sprite
Health
Damage
Delay
Defense
Myst
50
3
800ms
1
6
Clay2 Clay
Mud Mud
Worm Worms
Healing potion Healing Potions
Newbie Village
Newbie Cave
Crossroads
UW (All Floors)
Snake
Snake
Health
Damage
Delay
Defense
Myst
80
3
750ms
1
9
Raw meat Raw Meat Galebrook
Snake Pit
Southsands Desert
UW (All Floors)
Large Bat
Giant bat
Health
Damage
Delay
Defense
Myst
100
4
650ms
1
10
Raw meat Raw Meat Newbie Cave
The Underground
UW (All Floors)
Serpent
Serpent
Health
Damage
Delay
Defense
Myst
140
12
800ms
3
17
Raw meat Raw Meat Snake Hazard
UW (All Floors)
Skeleton
Skeleton
Health
Damage
Delay
Defense
Myst
160
18
900ms
3
21
Bone2 Bones
Silver Silver
Newbie Village
Wellington
Cemetery
UW (All Floors)
Goblin
Goblin
Health
Damage
Delay
Defense
Myst
150
6
800ms
1
17
Clay2 Clay
Mud Dirt
Mud Mud
Tinder2 Tinder
(Stolen Item)
UW (10+) Can steal one
unequipped
item from your
inventory.
Slime
Slime
Health
Damage
Delay
Defense
Myst
100
13
900ms
1
14
Bone2 Bones
Salmonberries Salmonberries
Silver Silver (rare)
Wellington
UW (10+)
Spawns more slimes.
Watcher
Watcher
Health
Damage
Delay
Defense
Myst
150
8
800ms
2
17
Caraway Caraway UW (15+) Attacks slow you.
Nether Leech
Nether leech
Health
Damage
Delay
Defense
Myst
100
22
800ms
3
21
Raw meat Raw Meat
Aloe seed Aloe Seeds
Silver Silver
Newbie Village
UW (15+)
Attacks increase
your hunger.
Fallen Knight
Fallen knight
Health
Damage
Delay
Defense
Myst
250
30
1500ms
8
36
Bronze2 Bronze
Silver Silver
Guardian ring Guardian Ring
Warrior signet Warrior Signet
Arena Ruins
UW (15+)
Skeleton Lord
Skeleton lord
Health
Damage
Delay
Defense
Myst
400
25
900ms
4
44
Bone2 Bones
Emerald Emeralds
Ruby Rubies
Cemetery
Catacombs
UW (19+)
Spawns skeletons
that give no myst or
hunting experience.
Mage
Mage
Health
Damage
Delay
Defense
Myst
100
14*
1000ms
2
14
Tinder2 Tinder
Silver Silver
UW (20+) Ranged attack.
All damage
ignores armor.
Flame Demon
Flame demon
Health
Damage
Delay
Defense
Myst
450
20*
500ms
4
42
Charcoal Charcoal
Escape lantern Escape Lantern
Citrine2 Citrine
Topaz Topaz
Southsands Desert
UW (20+)
All damage
ignores armor.
Reaper
Reaper
Health
Damage
Delay
Defense
Myst
300
20
600ms
3
33
50% chest. UW (25+) Teleports and
pursues no matter
where you go.
Rust Golem
Rust golem
Health
Damage
Delay
Defense
Myst
400
40
800ms
5
52
Copper2 Copper
Mud Dirt
Escape rope Escape Ropes
Repair kit Repair Kits
UW (25+) Attacks deal increased
durability damage.
Creeper
Creeper
Health
Damage
Delay
Defense
Myst
600
60
1000ms
6
74
Clay2 Clay
Silver Silver
Scholars lens Scholar's Lens
UW (30+) Invisible out of combat.
Fire Sprite
Fire sprite
Health
Damage
Delay
Defense
Myst
100
15
700ms
0
18
100% camp fire. UW (30+) All damage
ignores armor.
Explodes on death for
25% total HP damage
(2 square range).
Red Bones
Red bones
Health
Damage
Delay
Defense
Myst
380
40
900ms
5
52
Bone2 Bones
Clay2 Clay
Coriander Coriander
Catacombs
UW (30+)
Shroomie
Shroomie
Health
Damage
Delay
Defense
Myst
400
30
900ms
3
46
Aloe Aloe
Healing potion Healing Potion
UW (30+) Heals other mobs.
Healing range is huge.
Green Dragon
Green dragon
Health
Damage
Delay
Defense
Myst
600
40
1000ms
5
69
Bone2 Bones
Dragon scale Dragon Scales
Emerald Emeralds
Ruby Rubies
UW (35+) Shoots fireballs in
a straight line for 20%
total HP damage.
Can hit you repeatedly
if you're running away.
Archmage
Archmage
Health
Damage
Delay
Defense
Myst
350
30*
1000ms
4
43
Coriander Coriander
Tinder2 Tinder
UW (40+) Ranged attack.
All damage
ignores armor.
Ghost
Ghost
Health
Damage
Delay
Defense
Myst
1,000
70
900ms
0
124
Black pepper Black Pepper
Gold Gold (rare)
Cemetery
UW (40+)
Can shift through
obstacles, including
mobs and players.
Elixir
Elixir
Health
Damage
Delay
Defense
Myst
15
5
1000ms
5
10
Aloe seed Aloe Seeds UW (40+) When slain heals and
regen buffs all nearby
mobs and players to
full HP and adds regen
5dmg/sec for 60 secs.
Scorpion
Scorpion
Health
Damage
Delay
Defense
Myst
550
30
900ms
5
58
Mud Dirt
Poison extract Poison Extract
Woad Woad
UW (40+) Chance to poison for
5dmg/sec for 60 secs.
Haunted Remains
Haunted remains
Health
Damage
Delay
Defense
Myst
500
70
1000ms
4
86
Black pepper Black Pepper
Paper
Silver Silver
UW (43+) If not attacked can drain
levels from your highest
skill permanently.
Hive Soldier
Hive soldier
Health
Damage
Delay
Defense
Myst
400
25*
600ms
2
46
Honey Honey UW (44+) All damage
ignores armor.
First can spawn
up to five more
soldiers when hit.
Quill Beast
Quillbeast
Health
Damage
Delay
Defense
Myst
1,300
90*
1000ms
10
165
Raw meat Raw Meat
Arrow Arrows
Gold Gold
Shard Trap
UW (45+) Reflects back a
percent of any
damage taken.
Some damage
ignores armor.
Dust Devil
Dust devil
Health
Damage
Delay
Defense
Myst
600
80
500ms
10
102
Charcoal Charcoal
Silver Silver
Healing potion Healing Potions
Garnet2 Garnets
Escape lantern Escape Lantern
Southsands Desert
UW (55+)
Ranged attack.
Attacks slow you.
25% of damage
ignores armor.
Ice Elemental
Ice elemental
Health
Damage
Delay
Defense
Myst
1,200
100
1500ms
10
171
Caraway Caraway
Obsidian Obsidian
Snowtop Peaks
UW (55+)
Attacking the ice
elemental slows you.
Special AoE attack
also slows you a lot.
Tentacle
Tentacle
Health
Damage
Delay
Defense
Myst
1,200
120
1000ms
5
193
Black pepper Black Pepper
Iron Iron
Silver Silver
Southsands Desert
UW (55+)
Ranged attack on
a long delay (5secs).
Vampire
Vampires
Health
Damage
Delay
Defense
Myst
1,000
?
700ms
5
90
Raw meat Raw Meat
Gold Gold
Shard Trap
UW (55+) Heals for damage dealt.
Can also be a bat.
Most damage
ignores armor.
Summoner
Summoner
Health
Damage
Delay
Defense
Myst
800
70
800ms
5
109
Tinder2 Tinder
Tribe relic Tribe Relic
Catacombs
UW (58+)
Summons random
non-boss mobs.
50% of damage
ignores armor.
Dire Wolf
Direwolf
Health
Damage
Delay
Defense
Myst
1,200
100
800ms
6
171
Raw meat Raw Meat
Bone2 Bones
Pelt2 Pelts

Wolf Cave
UW (60+)

Very fast movement.
25% of damage
ignores armor.
Doppelganger
Doppelganger
Health
Damage
Delay
Defense
Myst
Copy
Copy
Copy
Copy
111
Raw meat Mystery Meat
Scholars lens Scholar's Lens
UW (60+) Copies player's name,
appearance, most stats,
and abilities on sight.
Lich
Lich
Health
Damage
Delay
Defense
Myst
2,500
130
800ms
3
306
100% bone pile. Snowtop Peaks
UW (65+)
Ranged attack.
Teleports and pursues
anywhere in the zone.
50% of damage
ignores armor.
Mind Flayer
Mind Flayer
Health
Damage
Delay
Defense
Myst
3,000
20
800ms
3
240
Black pepper Black Pepper
Depth recall Recall Potion
UW (65+) Ranged attack.
Attacks reduce armor
by 10, stacks infinitely.
Debuff lasts 5 secs
if not refreshed.
Ghost Blade
Ghostblade2
Health
Damage
Delay
Defense
Myst
3,000
150*
700ms
7
372
Hematite Hematite
Iron Iron Bar
Iron sword Iron Sword
UW (68+) Uses Disorient.
Unknown amount of
damage ignores armor.
Yeti
Yeti
Health
Damage
Delay
Defense
Myst
10,000
500*
2000ms
2
1595
Raw meat Raw Meat
Gold Gold
Snowballs
UW (68+) Moves slowly.
Ranged snowballs
slow you (25dmg).
20% of damage
ignores armor.
Assassin
Assassin
Health
Damage
Delay
Defense
Myst
1,500
50*
500ms
3
147
Flint dagger Flint Dagger
Copper dagger Copper Dagger
UW (??+) Fast and can Dash.
20% of damage ignores
armor. If behind you
ignores all armor, crits,
and can't be blocked.
Beholder Health
Damage
Delay
Defense
Myst
2,000
120
600ms
3
256
UW (??+) Fast movement.
Leaves trail of
poisonous gas.
Nightmare Health
Damage
Delay
Defense
Myst
4,000
??
??
5
??
UW (??+) Gets stronger if
attacked repeatedly.
Wait between
attacks to survive.
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