Following Solracht's minion thread, I think that a thread telling people how to unlock the dungeons would be helpful too
I'm asking the collaboration of the BG crew to come post here when they find The quest name (with NPC and location to unlock the quest, and if possible the lv minimum and maximum to enter) so we can keep the list
I didn't do the 3 dungeons during P4 so the love might be erroneous, if that's the case it will be updated when the real info comes.
On my side I will do my best to come here and update the OP with the accurate information to help the forum members
Sastasha (15-18)
How to Unlock : "It's Probably Pirates": Level 15 main story quest
Tam Tara Deepcroft (16-19)
How to unlock : "Fire in the Gloom": Level 16 main story quest
Copperbell Mines (17-20)
How to unlock : "Into a Copper Hell": Level 17 main story quest
Halatali (20-23)
How to unlock : "Hallo Halatali": At level 19+, Talk to Nedrick Ironheart in Vesper Bay, Western Thalanan
The Thousand Maws of Totorak (24-27)
How to unlock : "Into the Beast's Maw": Level 24 main story quest
Haukke's Manor (28-31)
How to unlock : "Skeletons in Her Closet": Level 28 main story quest
Brayflox Longstop (32-34)
How to unlock : "The Things We Do for Cheese": Level 32 main story quest
The Sunken Temple of Qarn (35-37)
How to unlock : "Braving New Depths": At level 32+, talk to Nedrick Ironheart in Vesper Bay, Western Thalanan
Cutter's Cry (38-40)
How to unlock : Silbold (Ul'dah Market Wards)
The Stone Vigil (41-43)
How to unlock : "In Pursuit of the Past": Level 41 main story quest
Dzemael Darkhold (44-46)
How to unlock : Two methods:
1: "Fort of Fear": At level 41+, talk to Ophelie near the Observatory in Coerthas Central Highlands
2: "Shadows Uncast": At level 44+, rank up to Sergeant First Class in your Grand Company, then speak to the commander of your Grand Company to activate the quest.
The Aurum Vale (47-49)
How to unlock : "Going for Gold": At level 44+, talk to Nedrick Ironheart in Vesper Bay, Western Thalanan
The Wanderer's Palace (50)
How to unlock : "Trauma Queen": At level 47+, talk to Allene in Vesper Bay, Western Thalanan
Castrum Meridianum (50)
How to unlock : "Rock the Castrum": Level 50 main story quest
The Praetorium (50)
How to unlock : "The Ultimate Weapon": Level 50 main story quest
Amdapor Keep (50)
How to unlock : Two methods:
1: "Ghosts of Amdapor": At level 50, after completing the main story and The Aurum Vale, talk to Nedrick Ironheart in Vesper Bay, Western Thalanan
2: "Twisted Beliefs": At level 50, complete the main story, rank up to Chief Sergeant in your Grand Company, then speak to the commander of your Grand Company to activate the quest.
The Binding Coil of Bahamut (50)
How to unlock : "Alisaie's Pledge": After completing the main story, complete all three hard mode primal fights, then speak to Urianger in The Waking Sands (primal quests are also started and finished at The Waking Sands).