Missing libraries for "Keep talking and nobody explodes"

[DanielHeath]

Moved here from ValveSoftware/SteamVR-for-Linux#301

Describe the bug

Cannot launch "Keep talking and nobody explodes" while steamVR is running.

When attempting to do so from the VR desktop, a desktop popup appears with the following message:

You are missing the following 32-bit libraries, and Steam may not run:
libXtst.so.6
libgtk-x11-2.0.so.0
libgdk_pixbuf-2.0.so.0
libva.so.2
libvdpau.so.1
libva.so.2
libva-x11.so.2

To Reproduce

Start "Keep talking and nobody explodes" from the SteamVR desktop using the controller (HTC vive headset/controller)

Expected behavior
The game should start.

System Information (please complete the following information):

• Distribution: Ubuntu with I3 window manager
• SteamVR version: 1.9.16
• Steam client version: Jan 18 2020 03:34
• Opted into Steam client beta?: No
• Graphics driver version: nvidia 430.26
• Gist for SteamVR System Information: https://gist.github.com/DanielHeath/22671ac7256e8082310540f208b61185