I read (and loved!) Liu Cixin's The Three-Body Problem back in 2016. I vowed to read the sequels soon... and then I ... didn't. I'm honestly not sure why (maybe: aliens?), but I watched and mostly liked the Netflix adaptation of The Three-Body Problem, which reminded me that I really should pick up the sequel (there are actually a few things from the second book in the series as well, so that was fun).
I'm glad I finally read The Dark Forest! This feels like a different kind of book to me (maybe due to being a second book in a series, or leisurely in a more focused way, or maybe I'm a different reader now?). Still, I enjoyed it almost as much as the first one.