This is the Steel 18 logo pack for Football Manager 2018.
The logos have a steel texture pattern applied, looking like they have just come out of a forge!
Steel Logo Pack Contents
You will get over 10000 logos for clubs and competitions.
How to add Steel 18 logos megapack on Football Manager 2018
Download the .zip file and use a tool such as 7-zip for Windows or The Unarchiver for MacOSX to extract their contents.
Move the extracted contents to your graphics folder:
\Documents\Sports Interactive\Football Manager 2018\graphics\logos\
Create folders "graphics" and "logos" if they don't exist already.
Run Football Manager 2018 and go to Preferences > Interface:
Hit the Clear Cache button. Return to this screen.
Enable Reload Skin when confirming changes in preferences.
Hit the Confirm button.