I don't know, is Case of the Golden Idol just based off Return of the Obra Dinn?
I think you could call both CotGI and this game "Obra Dinn-likes", but I think that this brings very different things to the genre (for starters, it has artwork that doesn't make me want to shut down my computer). I really liked this one.
the slightly moving characters and "fill-in the blanks with all the names" is more similar to CotGI.
I would say Obra Dinn is different in key ways, enough to say that they are both just part of the matching puzzle+lore genre. there is another game like Obra Dinn where you are a map guy who is trying to find a guys daughter, that makes it distinctly it's own series.
