Based on Steam release v1.0.0.41: 1,103,140,181 bytes, thanks to Chronos!
Modified CODEX 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 1 GB to 114 MB)
Installation takes 30 seconds
After-install integrity check so you could make sure that everything installed properly
HDD space after installation: 1 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 x64
Processor: 2.4 GHz
RAM: 4 GB
Video Card: Integrated GPU or better (1024 MB)
DirectX: 10
HDD Space: 1 GB