This released game plan is called Rockstar Classics.Go to Rockstar Classics
website,select the game (GTA1,GTA2,Wild Metal).
Scroll down to end of page and enter in your personal information and click ‘submit’,then can download the game.
GTA1 and GTA2 are modified from its original version to enable support for PC and Window operation system but not 100% guarantee ( stated in disclaimer) .
After download,users need to be following instruction installed the game into computer.
Above instruction already stated in the Rockstar Classics website.
Enjoy your download.