The best versions of online Monopoly are the official paid ones, and with those, you get better graphics and guaranteed support if there’s a technical issue. These usually won’t have the standard property spaces, as that infringes on the main game, but the rules will be the same. You can’t play the official Monopoly game online for free, but there are some unofficial versions that you can play without any cost involved.

Free Monopoly Games on a Laptop or Desktop PC.