[Windows 11] holaimscott:
Howdy! Since Project Valhalla has gone live, many people are wondering a lot of things about it, so I wanted to write down a quick breakdown of important facts to know about this Windows community port for Odin Base and Odin Pro.

This post will be kept updated if new developments occur.

Project Valhalla

Windows 11 ARM on AYN Odin Port Quick facts​

View attachment 5578907​

Hardware​

Project Valhalla allows Snapdragon Odins to run Windows 11. Most of the Odin features don't and do work:

Odin Hardware	Works/Does not work
Controllers and Buttons	Works. Sticks have a bit of latency lag reported in some applications.
Resolution Presets	1080p (default), 900p, 768p, 720p, 648p and 540p (in-game only)
Full Touchscreen	Works
Fan	Yes, runs at 50% the speed. Fan speed control app is currently in the works.
LED Lights	Stick lights are on. LED Light control app is currently in the works and allow to turn all LED lights (shoulder,sticks) or turn them off.
Rumble	No driver for Windows yet
Gyroscope	Works
DisplayPort (via USB-C)	Works (mirror and secondary monitor)
HDMI out (via microHDMI)	Not supported
Charging	QuickCharge and PD protocols work
Micro SD Card Slot	Works
Headphone Jack	Works
Speakers	Works

Compatible Odin Accessories

Most new USB-C accessories should work out of the box. The SuperDock fully works on the Odin:

Ports	Works
Ethernet port	✅
HDMI port	✅
N64 ports	✅
GC ports	✅
SATA 2.5" Drive slot	✅

However, there are limitations in Windows ARM, these are some things to consider:

Peripherals and devices only work if the drivers they depend on are built into Windows 11, or if the hardware developer has released ARM64 drivers for the device. Learn more here

Software​

Supported APIs

These are some of the following APIs supported on Odin running Windows ARM (as of the publication of this post)

API	Works/Does not work
DirectX	11.1
OpenCL	1.0,1.1
OpenGL	4.1

However, there are limitations in Windows ARM, these are some things to consider:

In x86 emulation: Games and apps won't work if they use a version of OpenGL greater than 3.3, or if they rely on "anti-cheat" drivers that haven't been made for Windows 11 ARM-based PCs. Learn more here

Supported architectures

Windows on ARM runs all x86, ARM32, and ARM64 apps (including UWP apps).

ARM32 & ARM64 apps	Run natively without any emulation
x86 apps	Run via emulation layer. 32-bit runs the best, while 64-bit was recently added and is a big hit and miss. Microsoft is still developing the x64 layer further

For more information on how Windows on ARM runs apps, or if you are interested in learning to code/compile for ARM, visit Microsoft's Documentation site.

Unsupported features

Android Subsystem	This port does not have Hyper-V support due to licensing issues, thus it won't work.
Virtualization	Win Odin cannot visualize Linux or other systems since it lacks WL firmware.

Samples of best running games

To show what the Odin is capable with Windows 11, here are a couple of few game tested by amazing members in our community:

Title	Playability	Architecture	Notes
Binding of Isaac: Repentance	Perfect	x86	Slight delay loading new rooms and levels. Otherwise perfect 60FPS. Needs OpenGL Compatibility Pack to run
Hollow Knights	Perfect	x86	You have to run 1.4.3.2 version since that one is 32-bit
Jet Set Radio	Perfect	x86	Compatibility Sheet
Sonic Mania	Perfect	x86	Compatibility Sheet
Street Fighter IV	Perfect	x86	Performance clip
Skyrim	Great	x86	Taki Udon's clip
Tomb Raider	Great	x86	Taki Udon's clip
World of Warcraft	Perfect	ARM64	Taki Udon's clip

Community sheet

There are more games being tested in our community sheet. Click here to find more games or request someone to test a game (works best in Desktop)

Emulation on Win Odin

Emulating titles on Win Odin is possible, and there are a couple of options that can work. Here are a couple of things to consider:

Using x86/x64 emulators might not work or give the best performance since you will essentially be doing an emulation of an emulator, emulating a game.

Some emulators might open, but they might not (i,e, CEMU) or be incompatible due to the lack of proper drivers (Citra, NS Emulators)

The best emulators to use would be ARM native apps. Popular emulators can run natively on Windows 11 ARM, but it requires building them.

Fortunately, we do have a couple of few. Additionally, there are some 32-bit emulators that do work decently on Win Odin:

Emulator	Usability	Notes
Dolphin Emulator	Perfect	Dolphin has an ARM compiler, but it needs to be manually built. The Dolphin team does offer compiling instructions in their Github Page.
Duckstation	Great	Has an official ARM build, but there is reports of sticks having a huge latency issue. This only affects sticks and not buttons.
PPSSPP	Good	Some games can run well, but others perform poorly in comparison to running them on Android.
Retrix Gold	Great - WIP	A new universal emulator that runs natively on ARM. Link to official website is here.
RetroArch (32-bit version)	Good	Runs older titles without issues. N64 and Dreamcast games crash.
RetroArch (UWP version)	Great - WIP	Community port made by the same developer of Retrix Gold, with ARM cores. N64 and Dreamcast games are buggy. Check Github for current compatibility.

Click here to find some download links or guides on how to compile ARM emulators (works best in Desktop)

Tips about running games on Win Odin

Not all games are will work on Odin, since some games will not recognize Adreno GPUs (even if the games are x86).

For best compatibility, always use x86 or ARM native games/apps. Many older titles are 32-bit, in comparison to newer titles. However there are 64-bit games with 32-bit versions.

A great way to check if your favourite games use any specific APIs or if they have 32-bit or 64-bit executables, look up your titles in PCWikiGaming

Some games will require tweaking with settings or installing addons, so just be mindful of this as the ARM system is limited.

There are several guides for finding games that could work on the Odin:

List of 32-bit games

List of native ARM Windows games

Power consumption

Note: This is a rough estimation based on the content provided by users and also in reviews. This is an ongoing topic for research and be updated as time goes.

The Odin has a 6600mah battery, but Windows devices tend to show the power in W instead of Ma. In a couple of recent Taki Udon's videos, the overlays in his videos shows it having 27.720 Wh

These are some reported power consumption in the following scenarios. Note that these are scenarios of the Odin running the fan at 50% speed, with LED stick lights on and full screen brightness (to our understanding).

Status	Watt consumption	Battery life estimation
Idle	~1—2 w	~13—27 days
Sleeping	During a 8hr sleep, it was reported the Odin only lost between 2-3% of its power (approximately 0.5—0.8 w )	~34—55 days
Running 2D titles in RetroArch (32-bit)	~4—4.5 w	~6—7 hours
Running Borderlands 2 (32-bit, 648p)	~6—7 w	~4—4.5 hours
Running Street Fighter IV (32-bit)	~5—6 w	~5 hours
Running Skyrim (32-bit, 720p)	~8w	~3.5 hours

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Quick FAQs​

Will the Odin Lite support Windows 11 too?

Why does the Odin run Windows 11 and not Windows 10?

Where can I find the tutorial to install Windows on Odin?

Is this an official port by AYN?

Who's behind this port?

Can we dual boot?

Is it possible to revert to Android in case I didn't like Win Odin?

What games can't run well?

And one last thing I would ask from you if you are interested is to avoid over-asking the aforementioned developers with features or request since they work during their free time.

If you have any other questions, feel free to ask in the comments and I'll be glad to help with what I know. :)

If interested in developing/helping this community project with more solutions, please let us know in this thread!​