Getting FOG Project
The latest release of FOG Project is v1.5.0, released February 26th 2018.

At this time, FOG Project can only be installed on a computer running Linux. We recommend using a Long Term Support distribution meant for servers, such as CentOS or Debian, though you can use a variety of other distributions. We also recommend installing FOG Project inside a virtual machine, to aide in easy backups and upgrades.

You can download a pre-packaged tarball of the latest release of FOG Project, v1.5.0, from here.
Please verify that your download matches one of the following checksums:
md5:  92d5a69b44e0e5cda33c4d5db73596d2         fog_1.5.0.tar.gz
sha1: 8e00ecada1f54dc69ae76f9f3e7329aecb151f3a fog_1.5.0.tar.gz
To install FOG Project, an internet connection is required. During installation, it will download other binaries and install any needed dependencies. More detailed guides can be found in the wiki, however, installation is as simple as extracting the tarball and running the install script:
tar -xzvf fog_x.x.x.tar.gz
cd fog_x.x.x/bin
sudo ./
Next Steps
Once installed, check out the wiki for more information and guides. If you need help head over to the forums.