Originally Posted by
[S8] Elsa
Do you mean RAM or capacity? It depends on how much you have played. To load boards more efficiently, images are cached so you don't have to download them every time you interact with them. If you've accessed a lot of content or have a big, highly decorated board then that's likely why you see larger storage than other games.
You can reinstall the app to clear the cache. It'll reduce the file size, but please note it will grow over time. This is normal for any game app, not just Castle.