I'm compiling a list of projects that are "everything projects". Like web browsers, or game engines, or VTTs, etc. Where at first it seems like "just" a display of some file, but you end up having to do crazy rendering, storage, audio, video, configuration, accessibility, arbitrary user input and fields, scripting and plugins, implement uncountable formats and specs, etc.

Anyone have a better name for these? Any examples that'd be surprising?