Developer Devran Cosmo Uenal has shown that PlayStation 5 titles can run on an Xbox Series X using a project called PS5X, his port of the open-source PS5 emulator KytyPS5. Uenal published a YouTube video showing the PlayStation 5 version of Quake II booting and playable with an Xbox controller, and he said three additional PS5 releases also run through PS5X.
The emulator works as a compatibility layer rather than full hardware recreation, translating PS5 calls into host commands. KytyPS5 converts the PS5 graphics commands and recompiles shaders for Vulkan, which lets it run PS5 code on x86-64 CPUs. Uenal said Xbox Developer Mode lacks Vulkan support, so PS5X must translate that output into DirectX instead, and he acknowledged that artificial intelligence assisted parts of the work.
At the time of reporting PS5X runs the PS5 versions of GEX Trilogy, Hellboy Web of Wyrd, Marvel Cosmic Invasion and Quake II. Uenal claimed PS5X includes no PS5 firmware or decryption keys, and KytyPS5 documentation advises using game files obtained legally. Some titles have working audio and TweakTown estimated Quake II performance in Uenal’s footage at roughly 25 to 45 frames per second. No public download of PS5X is available.
Limits And Legal And Technical Implications
PS5X operates only in the Xbox Series X Developer Mode, where Microsoft caps games at 5GB and apps at 1GB of memory, a constraint that blocks most current-generation releases. A retail Series X game receives about 13.5GB of the console’s 16GB, leaving PS5X to work with roughly 37 percent of a normal game budget. Requests for more memory fail, and Microsoft only raises the cap when software runs through the Visual Studio debugger for testing.
Microsoft removed emulator support from Xbox retail mode in 2023, citing a store policy banning products that emulate a game system, and reportedly issued 15-day suspensions to users who attempted workarounds. That enforcement and the Developer Mode memory ceiling mean PS5X is unlikely to benefit mainstream players without a jailbreak. The RPCS3 team lists KytyPS5 and SharpEmu as the two active open-source PS5 emulators that can boot games and warns against scam sites using similar names.
Progress on PS5 emulation on PC is advancing, with Android Authority reporting KytyPS5 reaching in-game states for multiple titles and one user showing Marvel’s Wolverine at its main menu on an RTX 5090 system. However, that footage showed slow motion and uncertain builds, and KytyPS5 fixes for Vulkan must be adapted to DirectX before PS5X can use them. Past legal action against Switch emulator Yuzu, which resulted in a $2.4 million settlement and project closure, underscores the legal and security risks. Security researchers have also flagged scams that mimic PS5X names to deliver malware.
