The real database for Global Soccer Manager 2018 includes 25.000 real players (20.500 players in facepack) and the real teamnames of 4500 teams (650 with teamlogos) of Season 2016-17.
Global Soccer Manager to buy at Steam:
Download Real Database (for free by od-base.de):
Open the packed Zip files or unpack them with a program (f.e. 7zip) and move them to the Steam installation directory under ..\steamapps\common\Global Soccer Manager 2017\. If you are asked if you want to overwrite the files when unpacking, confirm with Yes.
Screenshots of GSM 2017 with real database: