Before we discuss the crack or the repack, we must address the elephant in the room: Why v1.3? Most modern repacks use v1.9.6 or the latest DLC-inclusive builds.
The answer lies in optimization and hardware limitations. Kingdom Come: Deliverance launched in a notoriously rough state. The CryEngine was pushed to its absolute limit, resulting in:
Update v1.3 was the "Rattay Savior." It didn't fix everything, but it introduced massive streaming improvements. For players with 8GB of RAM and older GPUs (GTX 1060/RX 580 era), v1.3 provided a 15-20% frame rate increase in crowded areas. Later updates (v1.4 onwards) added heavy post-processing effects for the "Hardcore Mode" and DLCs that crippled older hardware.
Thus, v1.3 became the "Best for Low-End PCs."
This is the most important part of this review. This is not the latest version of the game.
Assuming you have found the correct magnet link or torrent file for Kingdom.Come.Deliverance.Update.v1.3-CODEX + fg-kingdom-come-deliverance-codex:
Step 1: Disable Antivirus
The CODEX steam_api64.dll is a false positive. Windows Defender will eat it. Add your installation folder to the exclusions list.
Step 2: Run the Fitgirl Setup
Step 3: Apply the Crack (Manual if necessary)
Sometimes Fitgirl forgets to auto-apply the crack. Navigate to the CODEX folder inside the repack. Copy Bin\Win64\KingdomCome.exe and the .dll files into your main game directory. Overwrite.
Step 4: Configuration Tweaks for v1.3 "Best" Experience Because this is the best version, you need to tweak ini files manually:
The CODEX crack used for this version is reliable. It bypasses the DRM cleanly without crashing or requiring complex launchers.