Modern, huge and dark; an RPG revolution
Daggerfall is the precursor of Morrowind, the definitive staple of free form, exploration based modern role playing game, but it too had a lot of these staples back in 96, a few years before Morrowind would send ripples through the genre. SO, The Elder Scrolls: Daggerfall is a sandbox RPG within limits; compared to Morrowind its story is not as developed, yet in terms of fighting, in terms of numbers of dungeons and enemies it is very close to it. Also, it was a sandbox not only in the sense of exploration, at your own free will and volition, but also deeper down, in the RPG engine; for instance, you could create your own spells by combining different ones, and you could upgrade your equipment more thoroughly than in many other first person RPGs. Sure, Arena , the first in the series had these elements too, but they were harder to use, but with The Elder Scrolls: Daggerfall the game made interactions, at all levels a lot easier and more comfortable to sink into. So, if you're visiting the precursors of Skyrim, better give The Elder Scrolls: Daggerfall it's due; it did a lot for the franchise!