I've got the same problem! I will give you the outputs later, when I get home again.

Is it now possible to use Solus as an airplay (audio) receiver?

I would really love to see this!

Now the eopgk check command shows everything is OK.
But it is still not working :/ How can I get further information what is wrong?

Having a similar problem!

I've done this now:
sudo eopkg up; sudo eopkg check | grep Broken | awk '{print $4}' | xargs sudo eopkg it --reinstall
And there are some broken packages:
nvidia-340-glx-driver-common
nvidia-340-glx-driver-32bit
python
linux-lts
mariadb-libs

Yup, I'm up to date. Having this issue for a longer time now :'(
Some time ago I've reinstalled the game, steam + the game but it didn't help.

Wow, that was very quick.
When I start Civ5 through terminal there is only this message - replicating 5-8 times and then nothing happens.
When I start Civ5 through Steam: