: Use a program like WinRAR or 7-Zip to extract the contents of the .rar file into a dedicated folder on your computer.
: Detailed game mechanics and item data are available on the Tundria Wiki . Tundria.pl.rar
: Locate the executable file (often named Tundria.exe or Patcher.exe ) and run it as an Administrator to ensure all game files are up to date. : Use a program like WinRAR or 7-Zip