> It lacked depth and complexity in some ways that modern games have

I would argue it has way more depth and complexity than the majority of modern games. There were so many systems that interacted in interesting ways, and so much player freedom that the devs actually accounted for. Just endless stories of "I tried this bizarre thing that I thought nobody would think of, and the devs actually wrote unique dialogue for this situation".

It's also a bit of a mess and cobbled together, but in a beautiful way.