There was a download of PSO2 Tweaker 6.0.3 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program lies within Games, more precisely Utilities. The most popular version of the tool is 4.0.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This PC software is suitable for 32-bit versions of Windows 7/8/10/11. PSO2 Tweaker.exe is the default file name to indicate the PSO2 Tweaker installer. This free tool was originally developed by Arks-Layer.
From the developer:
The PSO2 Tweaker is a replacement for the normal PSO2 Launcher, used to update and launch the Japanese version of the game. The Tweaker adds several options to the game, such as the option to automatically download and install new English patches as they are updated, configure your game settings, update your game quickly, and much more.
You may want to check out more software, such as Tweaking.com - Simple System Tweaker, WINner Tweak SE-2 or Tweaking.Com Windows Repair, which might be related to PSO2 Tweaker.
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