

PROTON_USE_WINED3D11=1 %command%
If you select "Borderless Fullscreen" in-game, the game will crash immediately.
This problem is due to my device, don't mind :)))

Only fullscreening using Alt-Tab worked
Anything less that GE 10-10 would not pass the first loadin screen.

If you try to use any of the stock Proton options, the game will be stuck in a white screen after "Cygames" logo fades out.

Game white-screens without Proton-GE10, so Proton-GE is required to play.
PROTON_USE_WAYLAND=1 %command%

WLR_RENDERER=vulkan
(wayland) flickering between partial and fullscreen, switched to Proton-GE fixes
white screen after logo without Proton-GE
Works. Do note that some countries will not be able to access this game (and it will return connection error).

nothing else to add

Need to trigger cutscene to automatically fix fullscreen
Low FPS on default settings, unsure if it's capped in-game or due to weak hardware

При запуске игры показывает заставку, но после этого просто белый, иногда черный экран без звука, но эффекты от курсора работают.
игра не работает

Screen constantly flickered
Game would not proceed to the first race in default Proton. Using the newest version of GE Proton seemed to fix the issue.

Not unplayable, but FPS will sometimes go down to 15-30 for no apparent reason
Proton Hotfix and GE-Proton9-27 do not work. Proton Hotfix causes the game to get stuck in a white screen and GE-Proton9-27 will crash on the initial race. Tested on KDE Plasma 6.4.1 under Wayland.

Window snaps to a fixed size

GE-Proton up to 10-6 can fix the white screen stuck problem.

Just make sure you always use Borderless Window when starting or changing to another menu in Gaming Mode
40 Hz & 12 TDP Power
You need to launch using Borderless Window mode
Borderless Screen will reverted to Window Mode and it makes the text blurry on Gaming Mode
It runs great on Steam Deck without tweaking Proton.

The windowing can be janky with tiling managers, I have to play the game in fullscreen or use floating mode.
The game would be stuck in a white screen after the Cygames logo if you use Proton, use ProtonGE to bypass that.

After a few hours, game suddenly works again.
Previously did not work. Did nothing and it suddenly does, whatever. Thank you Umamusume.

Game hung on title screen before switching

New update prevents launching
After today's update, the game no longer can get past the Cygames logo, just closes the disclaimer. Worked perfectly previously.

Had to switch to custom proton, and install it on the system drive, otherwise did not work at all, which is annoying as my system drive is meant to be for system files.

Game will run with Valves Proton versions but the game will crash when booting to the tutorial because of the Anticheat. Make sure when you get done with all the tutorials to switch to borderless fullscreen to get max resolution to make everyhing more readable and make it more prettier.
Make sure to install the latest GE-Proton version for it to work. Otherwise, you'd be stuck in a white screen after the "Cygames" logo

Game terminates on launch with "Failed to initialize player" dialog window
Suddenly began occurring for me this morning: when attempting to run with Proton Experimental, ProtonGE 10-9 or ProtonGE 10-8, the game terminates on launch with a Windows-themed dialog window displaying the following:
"Failed to initialize player Details: Failed to initialize graphics. Make sure you have DirectX 11 installed, have up to date drivers for your graphics card and have not disabled 3D acceleration in display settings. InitializeEngineGraphics failed"
While this dialog displays, I also see a repeated error in the console (which I'm not sure is relevant but I'll include it anyway): "[OverlayUsageStatsManager] ScreenTypeAnalytics: Unknown screen type for Umamusume: Pretty Derby: -1610011440 [object Object]"

Just started the game and it worked.

controller works fine, using 8bitdo Ultimate 2 wireless

Changed Proton versions, reinstalled wine, nothing works. Runs through heroic launcher, but always gets a connection error no matter what.
Something is broken and I wanna play the silly horse game.

Stuck on white screen after the Cygames logo
Stuck on white screen

Doesn't work through normal proton, stays on a white screen.

As others mentioned, switching to GE Proton fixed an issue where the screen is white after Cygames logo.

GE-Proton10-4 fixed the race course intro video crash, now it runs flawlessly ( at least on my machine ).

game-performance mangohud DXVK_HUD=compiler %command%
If the game starts in a windowed mode, pressing Alt+Enter makes it fullscreen.