I stumbled upon a list of how to unlock all of the dungeons, so far, that isn't spolierific; unless you consider the names and levels of things spoilers. If so, sorry, don't read any further.
List goes as such:
Name: (level range) Quest (level required for quest)
4 Man Dungeons:
List goes as such:
Name: (level range) Quest (level required for quest)
4 Man Dungeons:
- Sastasha Seagrot:Â (15 - 18)Â Main Story "Its Probably Pirates" (15)
- Tam -Tara Deepcroft:Â (16 - 19)Â Main Story "Fire in the Gloom" (16)
- Copperbell Mines:Â (17 - 20)Â Main Story "Into a Copper Hell" (17)
- Halatali:Â (20 - 23)Â Quest from NPC Nedrick Ironheart (Western Thanalan > Vesper Bay) (20)
- Thousand Maws of Totorak:Â (24 - 27)Â Main Story "Into the Beast's Maw" (24)
- Haukke's Manor:Â (28 - 31)Â Main Story "Skeleton's in Her Closet" (28)
- Brayflox Longstop:Â (32 - 34)Â Main Story "The Things We Do For Cheese" (32)
- Sunken Temple of Qarn:Â (35 - 37) Quest from NPC Nedrick Ironheart (Western Thanalan > Vesper Bay) (32)
- Cutter's Cry:Â (38 - 40)Â Quest from NPC Sibold (Ul'dah > Steps of Thal) (35)
- The Stone Vigil:Â (41 - 43)Â Main Story "In Pursuit of the Past" (41)
- Dzameal Darkhold:Â (44 - 46)Â Quest from NPC Carrilaut (Coerthas Central Highlands) (41)
- The Aurum Vale Coertas:Â (47 - 49)Â Quest from NPC Nedrick Ironheart (Western Thanalan > Vesper Bay) (44)
- The Wanderer's Palace:Â (50)Â Quest from NPC Allene (Western Thanalan > Vesper Bay) (47)
- Amdapor Keep:Â (50)Â Quest chain starts from NPC Nedrick Ironheart (Western Thanalan > Vesper Bay) (Main Story Quest Completion)
- Castrum Meridium:Â (50)Â Main Story Quest (50)
- The Preteorium:Â (50)Â Main Story Quest (50)
My life is a chip in your pile. Ante up!