First, preprocess the file to undo existing compression:
precomp.exe -v -c "gamefile.pak"
This creates gamefile.pak.pcf. Then compress that with Xtool: Xtool Library By Razor12911
xtool.exe c -m5 gamefile.pak.pcf final.xtool
Use a batch script to loop through all .pak files: First, preprocess the file to undo existing compression:
for %%i in (*.pak) do (precomp.exe -v -c "%%i" && xtool.exe c -m5 "%%i.pcf" "%%i.xt")
To understand Xtool, you must first understand its creator. Razor12911 (also known simply as "Razor" or "Xtreme") is a legendary figure in the warez and game repacking scene. Emerging in the early 2010s, Razor12911 wasn't satisfied with existing compression tools like FreeArc, WinRAR, or 7-Zip (LZMA2). While these tools were powerful, they had limitations: This creates gamefile
Thus, the Xtool Library was born. Originally a personal project, it quickly spread through private scene forums like "CS.RIN.RU" and became the secret weapon for repackers aiming to shave off those final precious gigabytes from a 100GB AAA title.
Xtool Library is a set of command-line tools (primarily xtool.exe) developed by Razor12911, a well-known figure in the warez/repack scene. It’s designed for ultra-high compression, especially for large games and software, by leveraging multiple compressors (LZMA, ZStd, Brotli, etc.) and advanced chunk-based processing.
XTool is a meta-compressor. This means it does not rely on a single compression algorithm. Instead, it acts as a routing engine that analyzes input data, pre-processes it, applies the most appropriate algorithm, and packages the result.