RollerCoaster Tycoon® 3: Complete Edition (1368820)

Compatibility Report

• Name of the game with compatibility issues: RollerCoaster Tycoon® 3: Complete Edition
• Steam AppID of the game: 1368820

System Information

• GPU: AMD R9 380
• Driver/LLVM version: Mesa 21.3.7/13.0.1
• Kernel version: 5.16.15-arch1-1
• Link to full system information report as Gist: https://gist.github.com/Blisto91/6225627c95fc94466897eaf7a4ebd33c
• Proton version: Tested with 6.3-8, 7.0-1 & Experimental bleeding edge

I confirm:

• that I haven't found an existing compatibility report for this game.
• that I have checked whether there are updates for my system available.

steam-1368820.log

Symptoms

Intro videos/splashes cannot be skipped by keypress unless you alt tab out of the game and back in. Works fine with WINED3D.
See dxvk issue

Sounds are broken and scratchy/weird sounding. See also report from Platinum version
From the proton log it looks like it's trying to load the 64bit version of the gstreamer files when it's supposed to load the 32 bit version i think. Same issue as Progressbar95

Reproduction

For the intro bug just launch the game and try to skip intro with a keyboard press. You will be unable to unless you alt tab out and in and then again press a key.

For the sound issue just launch into main menu and you will hear background music is all broken.

Start by reproducing both symptoms with the listed Proton versions and review steam-1368820.log. Compare the observations with the linked DXVK issue and the Progressbar95 report, then verify that intro keyboard input and main-menu audio behave correctly after the change.