


In Steam Deck Desktop Mode with fullscreen, moving the mouse cursor to top menubar may cause the mouse click not working. Using Alt-Tab to switch to other windows and then switch back to the game can fix this problem.
When starting the game in Steam Deck Desktop Mode with windowed screen, the screen may flicker or be low FPS. In Steam Deck Gaming Mode or fullscreen, screen is displayed normally.
OP can play with GE-Proton9-1. There is no need to install quartz.

protontricks 1033420 quartz
no video out of box, install quartz to play it

install quartz
In Desktop Mode with fullscreen, moving the mouse cursor to top menubar may cause the mouse click not working. Using Alt-Tab to switch to other windows and then switch back to the game can fix this problem.
When starting the game in Desktop Mode with windowed screen, the screen may flicker or very low FPS. In Gaming Mode or fullscreen, screen is displayed normally.
Install quartz to play OP
install quartz
When starting the game in the desktop mode, the screen will flicker. In the gaming mode, screen is displayed normally.
Install quartz to play OP
Limited fps to 30
Played flawlessly from start to finish.
LANG=ja_JP.UTF-8 PROTON_USE_WINED3D11=1 %command%
protontricks 1033420 quartz
after first run, then protontricks 1033420 winecfg
add "quartz" as "(native,builtin)" and "winegstreamer" as "(disabled)"
Some crashes related to Steam Overlay issues
PROTON_USE_WINED3D11=1
to get past blackscreen, install quartz via protontricks after running once (to create the proton compat prefix). Adult patch can similarly be installed using Protontricks Launcher once you have run the game once. Doesn't seem to work well with gamescope.
will black out if mouse hits the top of the screen
To get the movies working:
use proton 5.0-10
Install quartz with protontricks 1033420 quartz
In winecfg, protontricks 1033420 winecfg
add "quartz"
as
"(native,builtin)"
and
"winegstreamer"
as
"(disabled)"
To cap the framerate:
use libstrangle, build and install it, then In launch options put: strangle 60 %command%
The patch can be installed easily if you have a windows vm (you can make one easily with virt-manager). Simply extract the .exe with 7zip and copy the adult.xp3 to your install directory (the .sig file is not needed). p7zip cannot do this for some reason.

5.11-GE-1-MF GloriousEggroll
libstrangle
When the mouse hits the top of the screen, the window gets black in both windowed and FS mode. For the image to be shown once again, you have to set it in the opposed mode (windowed if fs and vice versa). Once you got it set in windowed, the fullscreen won't be full anymore, being just a stripe at the top or a third of the screen at the right
The game seems to run on vsync, which brings us on having something like 500fps. libstrangle is needed. Once it's installed, you have to set "strangle (desired fps number)" on the launch options
To display Japanese text correctly, set the launch option: LANG=ja_JP.UTF-8 %command%
The patch cannot be installed because Proton cannot detect that the game is installed. Workaround: install Steam in a separate wine prefix (e.g. use the Wine Steam runner in Lutris), install the game on that version of Steam, and run the patch installer in that wine prefix, at which point you can copy the adult.xp3 and adult.xp3.sig files to use the patch elsewhere.