Visiting the legitimate RPCSX/rpcsx repository on GitHub reveals the honest truth. The emulator is written in and utilizes Vulkan for graphics. Here is the real feature set as of 2025:
PCSX4 is identified by the emulation community as a fraudulent project and scam designed to mislead users, rather than a functional emulator with legitimate technical documentation. Legitimate PS4 emulation research is instead progressing through open-source projects like Spine, fpPS4, and rpcs4. For a detailed breakdown of the scam, see the discussion on Reddit r/emulation .
