Terraria. It has a similar concept of exploration and building. You can build structures, dig underground, and fight various monsters. Just like in Castle Story, you are constantly working towards improving your in - game world.
I don't think so. Usually, these games are made based on specific licensing and strategic decisions. There haven't been any recent announcements or indications suggesting another one is in the works.
It's hard to say just from the name. It could be either. It might be a story that's set within the context of games, or it could actually be a game that tells a Cinderella - like story.
I'm not entirely sure specifically what 'not another game story' is about without more context. It could be a statement against typical game stories, perhaps indicating a unique or different take on the concept of game - related narratives.
I'm not sure specifically as I haven't read this 'another pretentious game story'. It could be about a character's over - the - top journey in a game world filled with complex and showy elements.