I'm going to echo what Milodiah said; Shadowrun's future Earth has had a lot of great stuff written into the setting. While the recent editions mostly stick to the crunch, I love the fluff you get from the early editions, and how later boos and adventures will call back to previous ones like known news (at least within the shadows).

The fact there are rules for some of the really complex future sports like Urban Brawl is pretty awesome.

The other neat thing are the little meta chats you can find throughout the books from various runners that make it seem like they're reading the book along with you. This is something at least modern editions kept in, and I haven't seen anything its equal until D&D 5e came out with Volo's guide and Xanathar's book (I forget which came first).