Here's a Link to download Mafia 2 on the PC, it works so don't worry, just download it and install, it's Legit, I'm playing it right now because I just got my Wisdom teeth removed and I'm in hardcore pain right now so this is my entertainment, enjoy
http://thepiratebay.org/torrent/5786928/Mafia_II-SKIDROW_(Mafia_2)
http://thepiratebay.org/torrent/5786928/Mafia_II-SKIDROW_(Mafia_2)