Some data comes from the NA Wiki, so some data is missing.
This page will list stages with their NA/SEA names.
Ironwood Village (Warrior, Archer, Kali)
Shadow Forest
Shadow Forest Outskirts/Shadow Forest Trail
Level:1-3
Shadow Forest Depths/Shadow Forest Core
Level:5-7
Gale Woods
Ancient Temple Ruins
Level:3-5
Catacombs
Level:5-7
Ancient Temple Excavation Site
Level:8-9
Inner Catacombs/Catacombs Hall
Level:16-18
Temple Chapel/Church Ruins
Level:16-18
Mana Ridge (Sorceress, Cleric, Tinkerer)
Frost Hill
Icewind Valley/Frost Wind Valley
Level:1-3
Icewind Forest/Frost Wind Forest
Level:5-7
Snowmelt Forest
Farellina's Rest/Parelina's Resting Place
Level:3-5
Silent Cloister/Silent Monastery
Level:5-7
Marion's Hall/Marian's Shrine
Level:8-9
Orc Camp/ Orcs Base Camp
Level:10
Silent Cloister Main Hall/Silent Monastery Main Hall
Level:18-20
Astral Coven Laboratory/Dark Tower Magic Institue
Level:18-20
Ironwood Village & Mana Ridge
Crystal Stream
Assassin's Den/Raider's Den
Level:9-10
Valley of Mourning
Level:10-12
Marauder's Lair/Raider's Ambush Point
Level:14-16
Dead Man's Road/Road of No Return
Level:20-22
Carderock Pass
Ashen Ruins
Forest Sanctuary
Level:12-14
Sanctuary Nexus
Level:22-24
Autumn Shore
Dread Forest/Forest of Death
Level:12-14
Temple of the Sleepers
Level:14-16
Basin of the Fallen/Death Basin
Level:20-22
Prayer's Retreat/Prayer's Resting Place
Level:22-23
Minotaur Nest
Level:24
Saint's Haven
Black Mountain Path
Rockthorn Gorge/Abandoned Welton Hollow
Level:24-31
Black Sovereign Domain/Dark Overlord Keep
Level:26
Blackguard Stronghold/Dark Overlord Army
Level:28
Black Sovereign Assembly/Dark Overlord Training Camp
Level:30
Forsaken Village/Ghost Town of Isolated Forest
Level:30
Marissa's Dryspring/Dried Marissa Spring
Level:30
Cerberus Nest
Level:32
Black Sovereign Tower/Dark Overlord Tower
Level:34
Silent Reach/Explosion Zone in Withered Forest
Level:36
Apocalypse Nest
Level:40