Based on Steam Build 5412478: 3.9 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 3.9 to 1.3 GB)
Installation takes less than a minute
After-install integrity check so you could make sure that everything installed properly
HDD space after installation: 4 GB
Language can be changed in game settings
At least 2 GB of free RAM (inc. virtual) required for installing this repack
Operating System: Windows 7 64-bit or later
Processor: Intel Core i3-2100 3.1GHz or AMD equivalent
RAM: 4 GB
Video Card: GeForce GTX 560 Ti
DirectX: 9.0c
HDD Space: up to 6.3 GB (up to 8 GB during installation)