I think the number one rule of space exploration is “players must be able to fly wherever the fuck they want in their spaceship.” Their engine couldn’t handle that so they were hobbled from day one. All the design decisions were working back from that catastrophic mistake. They should have used Unreal or built a new engine or radically overhauled Gamebryo.

Very well said. Skyrim is incredibly immersive. Vanilla would be difficult for me to feel the same way about it I went back to it now, but with flora mods like Nature of the Wild Lands, grass mods, and environmental audio overhauls like Sounds of Skyrim, the game continues to draw me in like never before. I play the game much more slowly now, and spend more time walking and taking in the sights and sounds. I hope Bethesda can match this on their next title.