The installer was clever. Instead of storing standard audio and texture files, Fitgirl’s repack used and a custom rebuild of the game’s database files (.db). It repacked the 12,000+ game assets into smaller chunks, then reassembled them using a batch script during installation. This required significant CPU and RAM, but for a stalker with no internet, it was a miracle.
Your choices matter. The game features seven distinct endings. Only two of these endings are considered "true" endings, depending on how thoroughly you investigate the secrets of the Zone. FitGirl Repack Specifications Stalker - Shadow Of Chernobyl Fitgirl Repack
Once installed, let the automatic MD5 checker verify the integrity of the files. The installer was clever