Some very well known stuff like Valheim but also dredge.
Dredge is great for casual playstyle if you like nice looking fishing/boating experiences in games. Think stardew Valley level of fishing. Something that just works and is very pleasant. The theme of Lovecraft is enticing but not overly profound.
Tough learning curve but yeah, one of the most impressive procedurally generated games out there.
There’s plenty roguelikes/terminal games with procedurally generated content as well. ADOM or nethack are two of the most popular examples.