I had to jump through a lot of hoops to get this installed. Most of the GGOTD games, I don't even have to unzip, just double-click the setup.exe. This one you are supposed to unzip (maybe it doesn't matter but I did it), double-click setup.exe, which installs an installer, then double-click the installer. I ran the installer and it said I needed Microsoft.NET 4.0, so I downloaded and installed that. Then I restarted the installer and it said I needed to install two other components (don't remember what they were). I installed them. Then I tried to launch the game and got an error. I rebooted and tried to launch again only to get the same error.