If you try to extract and get an error saying "Volume is missing," it means you’re likely missing part1 or part3 . Why "Campsite Pack"?
, many users in the Steam Deck community recommend using from the Discover store. It handles multi-part RARs more reliably than the default file manager. Campsitepack1.part2.rar
Do you have of the pack downloaded, or are you seeing an error message when you try to open it? If you try to extract and get an