Branches are paths you can take in the Mazes of Menace that will lead you to items and XP. They are not to be confused with special levels, though most branches contain them (the Big Room is a special level, but it is not a branch in the dungeon).
Below is a list of dungeon branches.
- Dungeons of Doom
- Gnomish mines
- The Quest
- Fort Ludios (not always accessible)
- Vlad's Tower
- the Endgame (Elemental Planes and Astral Plane).