


Limit TDP to 10
If played in docked mode, the game doesn't recognize any external controller (aside from the official Xbox One) with the official controller profile set by default. Change it to the universal "Controller" profile provided by Steam to make it work.
The game works well out of the box. It has a few quirks however. It won't recognize properly anything else than an official Xbox controller and requires tinkering with controller profiles (see above). The anti-aliasing method used does not pair well with the 720p native resolution of the game (which does not support a 16:10 ratio unless modded). There is a super-sampling option which can be set to 200% to help, otherwise the game can easily be forced to any resolution higher than 720p, up to 4k. It's very light, so there won't be any problem with performance, although you may have to change your TDP limit accordingly. 1080p does a decent job cleaning up the image. Finally, the game has some frame-pacing issues which are cleaned up if you limit the framerate to 30 within SteamOS. The game cannot go above 30fps anyway, so I advise doing it. A decent experience overall once everything is set up.

No issues with any kind of slowdown without switching to Proton, even with the arcade games. Played a hefty amount of Space Harrier without any hitch.
Switch to the community lay-out 'Ryo Hazuki's Bindings' for correct QTE, but then they work perfectly. I didn't get Expert on Excite QTE 2 by sheer luck, you know.

Besides the issues I had with controller bindings, the game seems to run perfectly out of the box.
Exported community layout for use on a Dualsense
Runs like normal. Dualsense controllers seem to intend to have support, but the button prompts appeared to be buggy in QTEs without downloading community controller layouts.

2nd time playing on Deck, the community controller profile resolved the broken QTE glyphs in game.
Oddly, I needed to manually set a proton version, otherwise the game was listed as "Windows" and wouldn't install. (Install button greyed out) Since someone mentioned arcade games working better with GE, I used the latest GE version that was on my deck. Hang On run just fine as did the QTE2 machine, even set new high scores.
Changed the controller layout to remedy a visual bug
Before switching to the community layout 'Ryo Hazuki's Bindings' I couldn't select the game upon the launch config menu
Noticed a slight tempo discrepancy with Shenmue II in one of the story fights.
One optional cutscene didn't render correctly with Ryo reading a letter from his father in Shenmue I. The letter and hand aren't positioned correctly An issue I've also witnessed when running the game on some integrated graphics on laptops.
Perfectly playable after switching to the community layout. Unplayable otherwise, since QTE glyphs will be incorrect, rendering the game uplayable.
30FPS Frame limit TDP 4watt GPU 400Mhz
ReShade hotkeys
Running through GE-Proton7-23 makes the arcade games run smoother. You can use the Forklift Mod Loader to further improve the game.
The main games run great, but the arcade game slowdown tarnishes an important part of the game.
I have the Widescreen exe mod applies from Shenmue Dojo, alongside the installation of Forklift Mod Loader in the game directory. And finally I have the audio restoration mod installed for English languages in Shenmue 1 and 2.
Decreased TDP to 4 watts, GPU clock to 400 MHz.
The actual game runs fine, however the arcade games such as Hang-On and Outrun etc run very slowly.