I notice you're asking about a Stardew Valley VPK file.
Stardew Valley VPK, therefore, refers specifically to the packaged version of ConcernedApe’s masterpiece that can be installed on a hacked PS Vita, bypassing the official PlayStation Store.
In the enthusiast community, VPK files are used for several specific technical reasons: stardew valley vpk
Stardew Valley.vpk file from a trusted archive or dump your own cartridge.ux0:downloads/.ux0:downloads, and highlight the Stardew Valley.vpk.Verdict for Stardew Valley: Use the VPK. It is easier to uninstall, modify, and move around. The game is small enough (300MB) that the double-space issue is irrelevant.
To prepare custom content (mods) for the Vita version, you must often unpack the game's internal Content.psarc Unpacking Content ux0:app/PCSE01235/ (the game's ID). folder and locate Content.psarc I notice you're asking about a Stardew Valley VPK file
Warning: Downloading copyrighted VPK files for games you do not own is piracy. This guide assumes you own a legitimate copy of Stardew Valley or are testing homebrew modifications.
To use a VPK, your PlayStation Vita must be running custom firmware (such as HENkaku or Enso). You will also need: VitaShell: To manage files and initiate the installation. Acquire the VPK: Locate the Stardew Valley
Compatibility: The game runs on standard Vita firmware (3.60/3.65) using tools like VitaShell for installation.