Keys, chains and final bosses

Dungeons

All 8 dungeons open at level 25, and 7 of them are locked behind a single-use key. The final boss of one dungeon usually drops the key to the next, so they run in chains. Every chain below is worked out from the game's loot tables and crafting recipes.

From The Lower Garrison Group · 2 dungeons

Starts with no key
  2. Melchon drops Tower Key ×4

From Abandoned Barracks Solo · 4 dungeons

Starts with a key from world monsters
  2. Sarloch the Betrayer drops Depleted Key
  4. Knight Maximus drops Keys to St. Revere
  6. Ebondeath drops Salmaster's Key

From Telamont's Demiplane Group · 2 dungeons

Starts with a crafted key
  2. Demiplanar Guardian drops Sanctum Key

Entrances in Fanadin

6 entrances in Fanadin. The rest are entered from inside another dungeon.

At a glance

Dungeons
8
Group (4 players)
4
Solo
4
Required level
25
Locked by a key
7
Keys dropped by another dungeon
5
Final bosses
level 25–30

4 of the 7 keys say they only work once, so each run needs a fresh key.