You cannot reliably convert PS3 games to PS4 PKG in a playable state. The PS4 is simply not powerful enough to emulate the PS3 via software, and no magical translation layer exists for the public.
If you truly want to play PS3 games on your PS4, your only realistic options are:
In the PlayStation modding community (ConsoleHacking, GBAtemp, PSX-Place), "converting" has taken on a new meaning. As of 2025-2026, these are your only real options: convert ps3 games to ps4 pkg
To implement this feature, the backend requires specific SDK tools (typically derived from public homebrew knowledge):
Place your PS3 game dump inside the usr folder according to RPCS3's file structure: You cannot reliably convert PS3 games to PS4
You may need to decrypt the PS3 EBOOT.BIN to an ELF first using tools like scetool or 3k3y.
For a handful of indie PS3 games that used common engines (Unity, Unreal Engine 3), hackers have created scripts that: You may need to decrypt the PS3 EBOOT
Example: Limbo, Hotline Miami. These are edge cases and require per-game scripts.
The system scans the input file (.iso or folder structure).
To perform the conversion, you will need the following tools (commonly found on homebrew communities like psx-place):