: Find your MudRunner installation directory (usually Steam/steamapps/common/Spintires MudRunner/Media ).
The file is a compressed archive containing a custom map mod for the vehicle simulation game MudRunner (and its predecessor Spintires ). Content and Purpose Up_The_Volka_River.7z
: Move the extracted folders (classes, levels, textures, etc.) into that Media folder. etc.) into that Media folder.