Version installed: #92465 (linux) 

First time boot took very long, ~5minutes, while the game was probably indexing my harddisk. Only thing I saw was:

I stopped the game when I saw the menu  to try again and again I have a long wait of several minutes.

Perhaps show a loader?

Hello there, GNU/Linux builds are experimental for now, we are working on getting it to work. The long wait time you are reporting is a timeout because the game is trying to reach a server to download updates that no longer exists. We will post an update when this version becomes stable. Sorry for the trouble!

Hello,

I got those errors in the terminal when starting with ARCH:

Texture #1 32,32
Texture #2 32,32
finished(2)!!
read underflow detectedNot a PNGReadPNG :: a PNG error occuredTexture #1 32,32
Texture #2 32,32
finished(2)!!

over and over again.

Hope it helps to sort out the error.