For users who legally own a PS4 game, the following steps may apply:

If you are looking to install a PS4 game archive (often referred to as a "ROM" or, more accurately in the PS4 scene, a "PKG" or "FAKE PKG") onto your PlayStation 4, the process is not as simple as dragging and dropping a file. Unlike the early days of handheld emulation, the PS4 requires a specific hardware firmware version and a series of specialized tools to get homebrew or backed-up games running.