Graphics and video
For a list of games, see games with multi-monitor support.
Connecting multiple monitors to a computer these days is a common affair. Provided that your computer has the necessary video ports for multiple monitors, the process is pretty straightforward, although it is best performed with monitors of the same physical dimensions and resolutions, as well as a minimal level of bezel for the best experience. Simply connect the additional monitors to the video ports on your computer, position the monitors how you would like, and turn them on. In most cases, your OS will immediately recognize your new monitor.
There are a few things to note about setting up multiple monitors:
Download MouseJail from here
Insert at the start of your "Target" field : "MouseJail.exe" ( for example : "<path-to-game>\gta3.exe" => "MouseJail.exe <path-to-game>\gta3.exe").
On Steam set launch options to MouseJail.exe %command%
Download Dual Monitor Tools from here, extract to any folder.