Dungeons are instanced areas teeming with enemies and bosses, fought by a party of (usually) 4 players. Each instance of a dungeon is separate from others and is exclusive to a specific party. Dungeons need to be unlocked through quests (many are unlocked as part of the main story). They also have level requirements (and, starting at level 50, item level requirements). Players below the level requirement cannot enter the dungeon. Players above the level requirement are level synced to the maximum level permitted for the dungeon.
For example: Sastasha's level requirements are 15-18. Level 14 players cannot enter the dungeon; and level 19 and above players are level synced down to level 18 upon entering.
A Realm Reborn Dungeons
|Shadowbringers||Level||Item Level Req||Item Level Sync||Roulette||Loot Item Level||Tomes||Unlock|
|Holminster Switch||71||-||-||Leveling||390||-||The Lightwardens|
|Dohn Mheg||73||-||-||Leveling||400||-||The Key To the Castle|
|The Qitana Ravel||75||-||-||Leveling||406||-||The Buden of Knowledge|
|Malikah's Well||77||-||-||Leveling||412||-||A Fresh Start|
|Mt. Gulg||79||-||-||Leveling||418||-||Extinguishing the Last Light|
|The Twinning||80||410||-||Expert||430|| 80
|By the Time You Hear This|
|Akadaemia Anyder||80||410||-||Expert||430|| 80
|Akadaemia Anyder (Quest)|
|The Grand Cosmos||80||430||-||Expert||4??|| 80