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.
license: Creative Commons (by-nc) Attribution Non-commercial
link: https://www.fontspace.com/rocket-vintage-font-f46201