Here’s the critical point: PS3 games and the PS3 operating system use encrypted .SELF (Signed Executable) and .PRX (Executable) files. Users often mistakenly call them “PS3 DLLs.” When RPCS3 needs a PS3 system module (like libfs.sprx or libsysmodule.sprx ), it loads them from the PS3 firmware you installed via PS3UPDAT.PUP . No manual DLL downloading is required.
Your GPU driver doesn’t support Vulkan, or the Vulkan Runtime is not installed. Fix: Update your GPU drivers (NVIDIA/AMD/Intel). RPCS3 heavily prefers Vulkan. Optionally, install the Vulkan Runtime from LunarG. rpcs3 all dll files