If there's already been a topic like this then I'm sorry but oh well. In Fallout New Vegas the hardest part of traveling was the invisible walls. They put them everywhere even in the middle of mountains. You could barely climb anything and it made for a very difficult travel experience (when in the mountains). In FO3 there weren't any invisible walls. If you could reasonably get there it was open for you and the same in Oblivion. Does anyone know if it's going to be a similar case here?
I have a thorough going loathing for invisible barriers, in any game.
List
New Vegas
Oblivion
Morrowind
Fallout 3
I can't comment on FONV as it's a game I do not have and never will.
In Oblivion, i have seen creatures and NPCs I am pursuing, go through the artificial invisible borders, whilst i am actively prevented from doing so by the game. I hate that. If such invisible borders are to be in place, then NPCs should be forced to respect those invisible borders as well.
In Morrowind there were no invisible borders, but you could, with enough effort, run out of map by swimming. You had Levitate, which made steep mountains passable. You could Levitate over the Ghostfence, so it was no barrier.
In FO3, the invisible walls were there in massed force, to keep you from going overland to the outdoor dungeons, and once entering said outdoor dungeons, to keep you from exiting them overland.
Jenifur Charne