Error trying to run colem

I am trying to run “colem”, a colecovision emulator that I found on snap. I went through the snap installation instructions both on openSUSE Tumbleweed and openSUSE Leap 15.4, rebooting when instructed to do so, but after installing “colem” on both platforms I am stopped by the following error message:

/snap/colem/1/build/colem: error while loading shared libraries: libX11.so.6: cannot open shared object file: No such file or directory

I have both the x64 and 32-bit versions of libx11.so.6 installed, so I don’t know how to resolve this.

Please help.