A quick guide
Get THUG2 for the PC!
Click the logo above for a free download link. (Updated 5/31/2021: Previous link got removed. I have no idea if this new one works. I'll try and find a new one when I have time. In fact most of this is outdated so snoop around the community links below and maybe you'll find a better source.)
Unzip it, run 'setup.exe,' and install it somewhere. Your virus blocker might pop-up a warning, but don't worry, it's safe. (maybe, not sure anymore). Feel free to delete the folder when finished installing.
Click the logo above for the download link.
Simply install it in the 'Game' subfolder of THUG2.
For more information visit the official ThugPro forums here.