well I think we can all somewhat agree that there are big differences between the Fallout 1/2 "Dungeons" and for example the "subway/cave/ruin" dungeons in Fallout 3 that only are there for looting.
*Edit
One of the places that could be seen as a clear dungeon in my eyes would be the traper cave in Fallout 2 which if I remember correctly really had only 2 things you could do, save a guy inside it and kill all the creatures and find loot.
*Edit
One of the places that could be seen as a clear dungeon in my eyes would be the traper cave in Fallout 2 which if I remember correctly really had only 2 things you could do, save a guy inside it and kill all the creatures and find loot.