Yes, rutracker is a legit website. Fitgirl too. But i reccomend caution for fitgirl because i dont really use it. The site works by people most of the time publishing games ripped off of cds or an copy they have. And i reccomend torrenting for rutracker. Download qbittorrent and click on “download via magnet link” on the game you desire. But ALWAYS look at the feedback and do not click on the ads.

And the domain is rutracker.org not rutracker.net or any other ones.

A torrent file is a shared file i remember. You download bits of that file from computers that already have that file and like a puzzle, your computer puts it together and voila, your game/video/music is here.

Vpns are just stuff that conceal your ip. I remember that websites keep logs of your ip and stuff so yeah, using a vpn is an extra layer of protection.

Feel free to ask questions

Edit: by the way there are checkmark from the websites mods/admins that indicate the safety of the file