: Offers a highly realistic Vietnam combat experience.
: Downloading "abandonware" exists in a legal gray area. While the copyright holder may not be active, the intellectual property rights technically still exist.
: A modern multiplayer tactical shooter specifically set in the Vietnam War.
If you are looking for similar tactical shooters that are officially supported on modern platforms, consider:
Vietcong 2 is currently considered by many gaming communities because it is no longer available for purchase through official primary digital storefronts like Steam or GOG.com.