- City alignments based on AD&D.

Castle - Lawful Good
Rampart - Neutral Good
Tower - Chaotic Good

Conflux - Lawful Neutral
Fortress - True Neutral
Stronghold - Chaotic Neutral

Dungeon - Lawful Evil
Necropolis - Neutral Evil
Inferno - Chaotic Evil

This is a very rough classification :) In reality, it's like this:
Rampart - Neutral Good
Tower - Neutral Good
Castle - Lawful Good
Fortress - Lawful Neutral, Chaotic Good
Conflux - Neutral Good, Lawful Neutral, Chaotic Evil
Stronghold - Chaotic Neutral
Dungeon - Lawful Evil, Neutral Evil, True Neutral
Necropolis - Neutral Evil, Lawful Neutral
Inferno - Lawful Evil, Neutral Evil, Chaotic Evil
This is if we don't take into account the numerous nuances.
More than nine.

At the same time, if you pay close attention to the plot of the campaigns, the heroes of different factions behave in accordance with these alignments! Take, for example, the cunning and treacherous Sandro, weaving intrigues - a typical NE. The cold-blooded Xeron, who kills his own soldiers on a whim, is a clear example of CE.

Throughout the game, Xeron was only recorded killing a soldier once. It was a minor character. Xeron is a typical LE.