I do agree that the dungeons get repetitive.
There's basically a limited number of "tilesets": Dwemer, Cave, Mining Tunnel, Fort, Nordic Ruins, Prison.
Then you take one of those "tilesets" and add inhabitants to get a sort of mixture of things: Animals (including Trolls and Spriggans), Undead, Necromancers, Vampires, Bandits, Ghosts, Forsworn, Ice themed monsters, Falmer, Mages, Dwemer Machines, Guardsmen...
With those two things you can come up with just about all of Skyrim's dungeons (excluding those "special" ones - Blackreach for example)
For example:
Cave + Bandits = Bandit Lair. Basically a cave with a little water and open ceilings at points. Ground is usually dirt or rocks. Lots of wooden catwalks and such to let the bandits get around easier. Occasional traps, usually falling rocks or morningstars. Ingots, armor and weapons are usually found here, as well as smithing equipment on occasion. Always ends with a tough bandit and a chest.
Could be seen as the Warrior tree's dungeon.
Cave + Vampires = Vampire lair. More or less the Bandit Lair with vampires in place of bandits. Notably there's no open ceilings - as far as I can remember anyway. Expect to see more dead bodies, alchemy ingredients and books. Usually at least one alchemy/enchanting table. Always ends with a tough vampire and a chest.
Somewhere half way between the Magic and Physical themed dungeons.
Cave + Mages/Necromancers = Mages'/Necromancers' Lair. Same deal as the above two, except now there's spell slinging bastards instead of bandits or vampires. Somewhat less wooden structures. Shares roughly similar loot to the vampire lairs, and necromancer ones usually have corpses lying around for them to resurrect. Expect soul gems, and soul gem traps to be more prominent. Usually ends with a tough mage or necromancer, but not always. A group of less powerful ones around a slightly tougher mage, or a small group of necromancers with a few corpses handy are common. Always ends with a chest.
Nordic Ruins + Undead = Nordic Ruins. Well, I've yet to come across a Nordic ruin without any Draugr (or Draugr varieties) in it, but there are plenty with different enemies in them at certain points in the dungeon. Many start with bandits or mages (or their corpses) before you run into the undead. Runic patterns abound, and lots of catacombs stuff like holes with bodies in them, candles, burial urns, embalming tools, sarcophaguses (?) etc. Traps are usually set off by round, runed pressure plates and most often consist of fire urns dropping on oil, spiked gates slamming into you, or dart traps. Sometimes you'll see soul gem traps too. Wooden structures are common, as are rotating symbol puzzles which usually aren't made difficult at all due to the mouth things on the walls always holding the answer.
Also used most commonly for important things like word of power walls and named weapons.
You can take this and apply it to just about any dungeon in Skyrim. It's likely I've made mistakes or I've missed out a dungeon type. If so, feel free to point it out so I can correct it :P
Also, if I had a penny for every time I heard "you never should have come here"...
Last edited by 4zb41; Jan 4, 2012 at 10:57 PM.