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.
Alan Wake. And on a grander scope almost all of Remedy’s stuff. They put everything together where it feels like there’s more out there. There’s no seam in the metaphorical stitching. It feels like even when you reach the end of something there is more.
From less of a deep standpoint? The 3DS fire emblem games. They do some really cool stuff that connects them together.