Modder Oracus0 has been working on a major modification for Skyrim (Skygerfall) for the past two years, which adds the story from The Elder Scrolls 2: Daggerfall to the game. Just recently he will release this mod, which is already available for download.

Players can start playing through the story of Daggerfall and then switch to the main quest in Skyrim. In this case, all earned experience and learned skills will remain with the character.