Three projects, three different things
These items are easy to blur together, so here is the split:
| Project | What it does | Status |
|---|---|---|
| PSBox Cloud Gaming | Streams Xbox games from Microsoft's cloud or from your own Xbox | Public, v0.9.5 |
| prospero-win | Runs Windows games locally on the PS5 through Wine and DXVK | Public builds, experimental |
| PP / "Mihawk OS" | Proton-based Windows gaming, expanding into a Windows 11-style environment | Demo only, no release date |
PSBox Cloud Gaming: a streaming client, not an emulator
PSBox is a native Xbox Cloud Gaming client for jailbroken PS5 consoles. It lets you browse the cloud catalog and stream games at 1080p60, with the DualSense acting as an Xbox controller. Nothing runs locally on the PS5. The games execute in Microsoft's cloud, or on your own console in the case of Remote Play.
What it does
- Sign-in uses a code shown on the TV, so no password is typed on the console. The app has Game Pass and "Your games" tabs, search, and free-to-play games.
- A "My consoles" feature lets you play your own Xbox through Remote Play, including its screen, games and apps.
- The picture is upscaled to 4K on the GPU with AMD FSR 1 or Anime4K, and compression blocks are smoothed.
- DualSense support covers rumble, adaptive-trigger vibration, a light bar in the game's colour, and up to four controllers.
- An in-game menu (OPTIONS + TOUCHPAD) shows statistics, picture options and stream resolution. The client also reconnects by itself after a short network drop.
Version 0.9.5 and the pace of development
According to the PS5 Homebrew Store listing, v0.9.5 was updated on Oct 10, 2026. Its notes describe native voice chat through the DualSense microphone and connected headsets. They also describe a physical mute button synced with the orange LED.
The release history is fast. v0.2.0 was released on Oct 7. Version 0.9.0 added signed in-app updates, trigger-vibration settings and search filters. That is roughly nine versions in a few days, which suggests rapid iteration and not much long-term track record. Treat it as early software.
Requirements and install outline
You need a homebrew-enabled PS5 that can run directory-style apps (ShadowMountPlus is the example given). You also need a Microsoft account with Game Pass Ultimate for most of the catalog. Playing your own Xbox is different: the v0.7.0 release notes say it works on any plan.
The documented steps are:
- Extract the zip and copy the whole PPSA99810 folder to /data/homebrew/ on the PS5, for example over FTP.
- Wait for the loader to add the PSBox Cloud Gaming icon to the Home screen, then launch it.
- Open Microsoft's device-link page on a phone or computer, or scan the QR code, and enter the code shown on the TV.
Caveats worth knowing
- Catalog eligibility is not universal. VideoCardz says "eligible purchased games" are playable. Don't read that as every game you own.
- Microsoft can break it. The project README itself warns that Microsoft may change or block the services the client relies on at any time.
- Account hygiene. The README says sign-in lives in
PPSA99810/account.json, and that you should never share that file. Updates accept only packages signed with the maintainer's key. That is a sensible design, but it is not an independent security audit. - Unofficial. The project states it is not affiliated with, endorsed or sponsored by Microsoft or Sony.
From a Windows and Xbox perspective, this is a reminder of how portable xCloud is. A Microsoft account, a device-code login and a WebRTC stream are enough for a third-party client to work. Whether Microsoft tolerates that is an open question. The README's own warning suggests the author knows it.
prospero-win: the one that runs Windows games locally
Don't confuse this with Mihawk's project. prospero-win is described as a Windows compatibility runtime for native PS5 homebrew. That quote comes from the repository's own summary, and it has public builds.
How it works
The project's architecture notes describe a stack with several parts:
- Wine runs inside the PS5 app.
- 64-bit code runs natively on the PS5's x86-64 CPU.
- 32-bit code goes through the project's own x86 translator.
- Direct3D 8 to 11 goes through DXVK and Vulkan.
- OpenGL goes through Mesa's Zink.
- DualSense, keyboard and mouse input are supported.
Reported results, with conditions
These are developer-reported figures, not independent benchmarks:
- Half-Life 2: 60 FPS at High settings. The profile records a 91-second train-station demo averaging 59.7 FPS, never below 56. Keyboard was checked, but mouse and DualSense were not yet checked for that profile.
- GTA IV (Complete Edition): roughly 54 to 55 FPS in the open city at 1080p. It drops to the mid-40s in fights and crowds, and loading takes about 90 to 95 seconds.
- Counter-Strike 1.6: 59.9 FPS in a de_dust2 test with nine bots, via Zink.
- OpenArena, Half-Life, Warcraft III: playable. Warcraft III performance is listed as not yet measured in its profile.
The README is candid that this is experimental. It says that supporting 32-bit and 64-bit software does not yet mean every modern Windows game works. It also says the project does not bypass DRM or anti-cheat and does not ship games. In other words, don't expect your Steam backlog of modern titles to light up.
What it takes to try it
The setup is not casual. You need an FTP server and ELF loader, an app loader, your own copy of each game, and a Linux PC to install games. The README says the app itself uses no firmware-specific offsets. The jailbreak, the loader and a bundled helper do depend on firmware, so you need versions that support yours.
PP / Mihawk OS: ambition ahead of availability
Mihawk's PP (PS5 Proton) is the least mature of the three. VideoCardz reports that on October 10 the developer said the project is growing into "Mihawk OS", described as a Windows 11 clone. The stated goals are 32-bit and 64-bit Windows gaming through Proton, with a Linux compatibility layer planned. The developer claims Vulkan, DirectX and OpenGL support but acknowledges that few games have been tested. No public release date has been given.
"Windows 11 clone" is the developer's own label. Nothing available shows it is equivalent to Windows 11, and it has no Microsoft connection. For now it is a demo and a roadmap.
There is one link between the projects. The prospero-win credits thank a developer named mihawk-99 for fixing several Wine-on-PS5 problems. I would not assume that is the same person as the PP developer. The sources I reviewed do not say so.
Why Windows and Xbox readers should care
- Xbox's cloud strategy is device-agnostic by design. If an unofficial client can run xCloud on a console from a rival, the service really is just a stream plus an account.
- Wine, DXVK and Vulkan keep proving their reach. The same translation stack that powers Linux gaming is now running on a locked-down console. That is a useful data point on how far the Windows-on-other-hardware approach has come, and where it still struggles.
- Risk sits with the user. Jailbreaking a console, loading unsigned apps and signing a Microsoft account into a third-party client all carry risk. Sony's or Microsoft's terms may not allow it, and either company could respond by blocking access. Neither company's position was in the material I reviewed.
Bottom line
- PSBox Cloud Gaming is real, public and moving fast. It is a streaming client and needs Game Pass Ultimate for most of the catalog.
- prospero-win is the only one of the three that runs Windows games locally, and it works for a short, mostly older list of titles.
- Mihawk OS is a demo with big claims and no release.
- Everything here requires a homebrew-capable PS5, and nothing is officially supported.