Pak Merger

Welcome to the paks merger.

This tool merges all modded .pak files into a single optimized package.
It is designed to improve performance and stability when using mods. It does not solve conflicts, this one merges files into the base game.

EXPECT 20GB FILE !!!!!

If you want a mod loader (that solves conflicts), use ZMTLoader

In Motor Town also this enables again Achivements and Leaderboards, so be aware when using it.
This is highly considered as cheat so don't use it in that regard but lean to it if you want more performance.

How to use it ???

Run repack.exe
Windows may say it's from an unknown publisher.
Click "More Info" → "Run Anyway" to allow it.
This step sets up the environment.

Run PakMerge_MT_....bat
Again, click "More Info" → "Run Anyway" if prompted.
This will start the merging process.

Wait for the merge to complete
When it finishes, you'll be asked to press Enter.

What does this tool do?

Motor Town uses compressed .pak files by default to save space and memory.
However, in smaller or heavily modded games, this can cause slowdowns, stuttering, or longer load times.
This tool repacks all .pak files into one uncompressed file to speed things up.
Performance improvements from testing:
🧠 +2% RAM usage
🎮 +44% more stable FPS
🎥 -10% GPU usage
⚙️ -20% CPU usage
⏱️ -41% faster loading times
🚀 -150% faster teleport loading

Always make a backup before using the tool, just in case.

Source code: https://github.com/qxZap/PakMergeMT
repack build from source code: https://github.com/trumank/repak (build your own if you don't trust it)