Is it illegal to download a torrent of a game if you already bought and own the game?

Lately I’ve been on a nostalgia kick and I’m craving to play a computer game I played as a small child. We still have the game on CD-rom, but it ran on Windows 95 and it’s not compatible with my Windows 7 PC. I found a torrent of the game online that can run on modern computers. I don’t think it would be morally wrong at all to download it, but is it illegal? And how likely is it that I would get “caught” and fined if it is?