Based on Steam release Build 4737694: 7.5 GB, thanks to chronos!
Game version: v1.0.7
Goldberg emu/crack applied over
Bonus OST and artbook are included by default
100% Lossless & MD5 Perfect: all files are identical to originals after installation
NOTHING ripped, NOTHING re-encoded
Significantly smaller archive size (compressed from 7.5 to 2.6 GB)
Installation takes two minutes
After-install integrity check so you could make sure that everything installed properly
HDD space after installation: 7.5 GB
Language can be changed in game settings
At least 2 GB of free RAM (inc. virtual) required for installing this repack
OS: Windows 7 x64 and UP
Processor: Intel i3 or AMD equivalent or better
Memory: 4 GB RAM
Graphics: NVIDIA GTX 570 or higher
DirectX: Version 11
Storage: 15 GB available space