I need a CMS, plugin (e.g., for WordPress), or even some PHP app. I want to create a simple website that allows users to upload files (savegames, for example). It should be easy to use, have categories, and require as few clicks as possible.
For example, something like these sites:
I've tried things like MyBB forums with Downloads plugin, but it does not work as expected: the user must provide an URL for the file instead of an upload button.