For just a few dollars (often less than $2 during a sale), you can get a legitimate copy that is pre-configured to run on modern systems:
The original 1998 files hate modern Windows. Without specific community patches, the game will likely crash, have broken textures, or run at 1,000 FPS.
Finding a torrent might seem like the quickest way to step back into the shoes of Garrett, but there are much better (and safer) ways to experience this stealth masterpiece today.
Another solid option, though you may need to apply a community patch to get it running perfectly. Essential Step: Install TFix
Don't risk your PC's health on a shady download. Supporting the game on GOG or Steam keeps this legendary franchise visible to publishers and ensures you’re getting the most stable, complete version of the City.