ウマ娘 プリティーダービー | Umamusume: Pretty Derby (3564400)

[rinsuki]

Compatibility Report

• Name of the game with compatibility issues: Umamusume: Pretty Derby (ウマ娘 プリティーダービー)
• Steam AppID of the game: 3564400

System Information

• GPU: AMD AMD Radeon 780M Graphics (integrated)
• Video driver version: Mesa 25.1.4-arch1.1
• Kernel version: 6.15.3-arch1-1
• Link to full system information report as Gist: https://gist.github.com/rinsuki/2d7216bac764b5417c594dcf73dcab6d
• Proton version: Experimental (1749849620 experimental-10.0-20250612c)
  • I tried few more versions, but none of them worked:
    • Hotfix
    • 9.0-4
    • 10.0-1 (beta)

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
  • #8848 is for Global (except JP) release (different AppID), this report is for JP-exclusive release.
• [x] that I have checked whether there are updates for my system available.

steam-3564400.log

Symptoms

the Game will silently fail to launch, without showing any window or error dialog.

according to Proton's logs, the Game trying to load CrackProof kernel module and fails because of lacks WDFLDR.sys.

3596.978:0078:0084:err:module:import_dll Library WDFLDR.SYS (which is needed by L"C:\windows\SYSTEM32\usrdrv017864.sys") not found

since Global Release is seemingly (partially?) working according to #8848 , maybe Cygames doesn't want to run on the Linux for Japan peoples :(

Reproduction

Open the game in Steam.