Based on Steam release Build 5495322: 2.4 GB, thanks to chronos!
Goldberg emu/crack applied over
100% Lossless & MD5 Perfect: all files are identical to originals after installation
NOTHING ripped, NOTHING re-encoded
Significantly smaller archive size (compressed from 2.4 GB to 840 MB)
Installation takes one minute
After-install integrity check so you could make sure that everything installed properly
HDD space after installation: 2.4 GB
At least 2 GB of free RAM (inc. virtual) required for installing this repack
Operating System: Windows 7 x64
Processor: Intel Celeron G3930 2.9 GHz
RAM: 4 GB
Video Card: GTX 1050
DirectX: 11
HDD Space: 2.4 GB