There's nothing here...?

[sebastianbhahn]

There aren't any textures here, just the README file... What gives?

[LV99VIVI]

same thing here

[sebastianbhahn]

same thing here

I think the dev accidentally didn't include the main file in the latest release 0.0.33.
If you go here: https://github.com/DeathWrench/MM3DHD/releases/
and download the 0.0.32 release instead, the files are included.