It is not fully private. You can browse without an account but cant use the site’s search. If you don’t want to create an account you can use a search engine like duckduckgo like adding site:rutracker.org to your query

You can find games like this one in rutracker which require no installation, decompression or dwarfs thing, only the files. Just like what you’d have after installing a repack

rarbg.best

https://nyaa.si/help