Often, files labeled "No Password" in the filename are indeed unencrypted.
If you are looking for a for a digital content management or sharing platform inspired by this, here is a concept: Feature: "Zero-Handshake Vault" AMS Cherish SET 140 No Password 7z
Or are you trying to figure out what the software/game is? If it's from an old forum, I might help identify the actual content if you share more context (legit software name, year, purpose, etc.). Often, files labeled "No Password" in the filename