What games have what you’d call really good worldbuilding, and what in particular do you like about them?
https://en.wikipedia.org/wiki/Worldbuilding
Worldbuilding is the process of constructing an imaginary world or setting, sometimes associated with a fictional universe. Developing the world with coherent qualities such as a history, geography, culture and ecology is a key task for many science fiction or fantasy writers. Worldbuilding often involves the creation of geography, a backstory, flora, fauna, inhabitants, technology, and often if writing speculative fiction, different peoples. This may include social customs as well as invented languages (often called conlangs) for the world.
World of Warcraft; Azeroth (the planet) lore is quite detailed and fleshed out - building upon the foundations of the original RTS trilogy.
It’s a bit of a shame a lot of it gets swept under the rug every major expansion and patch cycle, so it’s hard for new(er) players to catch up.
Even Warcraft 3 was basically a giant retcon of the first 2 games (even as plot light as they were). The series has constantly pulled new stuff out of it’s burr.