Opusfived.dev is a short interactive comedy about AI assistants. The page asks you to make an Add to Cart button blue and let nothing else change. That context matters: a small creative experiment faces different trust tests than a shop or subscription service.
The checks come back mostly quiet. The site behaves well technically, loads quickly, and nothing links it to scam or malware activity. The missing pieces are the public ones: no real about page, no contact path, and no track record. For an indie web project, those omissions are normal. For a company, they would be a concern.
You won't find established opusfived.dev reviews because there's no history to review. Nothing in the evidence makes opusfived.dev look like a scam. The main thing to watch is whether it ever changes shape and starts asking for personal data or money. As it stands, casual visitors have little to worry about.