Highly recommended for advanced users with hardware robust enough to handle the memory overhead.
xtool.exe -mrep:1g -mprecomp -mlzma:a2:mfbt4:1g:mc2000 -ms=on -mt=off -mdc=1024
Thanks in advance for any tips or battle-tested command lines!
XTool is a pre-processor; for the absolute best final file size, community consensus is to chain it with other tools: xtool by razor12911 compression settings best ratio
xtool.exe -mrep:256m -mprecomp -mlzma:a2:mfbt4:512m:mc1000 -ms=on -mt=off Output size is ~35% smaller than normal zip/7z, but I’ve seen claims of up to 50%+ with razor’s tools.
A popular high-end chain used by repackers is: xtool:mkraken:8:dd3+LOLZ_NORMAL . Pro Tips for Ratios
: A common alternative for older games or standard Zlib-compressed data. Chaining for Maximum Compression Highly recommended for advanced users with hardware robust
Achieving the best compression ratio with XTool (created by Razor12911) generally involves a multi-stage "chaining" process where data is first pre-processed to an uncompressed state and then re-compressed using high-ratio algorithms. For most modern games, the most effective configuration for a maximum ratio is typically or XTool + SREP + LZMA2 . Optimized Compression Chains
When using the XTool Command Line Interface , these specific flags impact the final output: Recommended for Ratio Description (Chunk Size) -c64mb or -c128mb
: Specifies the Kraken codec, often found in modern game files, to maximize stream detection and re-compression. A popular high-end chain used by repackers is:
For those who have pushed this tool to its limits:
: Removes data redundancy across the entire file. LOLZ / LZMA2 : Performs the final heavy compression.
For general-purpose high-ratio pre-compression, use a command similar to: xtool precomp -mkraken -c128mb -t100p [input_file] [output_file]