This fonts are authors' property, and are either shareware, demo versions or public domain. The licence mentioned above the download button is just an indication. Please look at the readme-files in the archives or check the indicated author's website for details, and contact him if in doubt. If no author/licence is indicated that's because we don't have information, that doesn't mean it's free.
Is it Serif or Sans? Western or Gothic? Double font or not? One thing is certain: This font is not a time-travelling alien. Probably.