Hello, sorry for taking so long and thank you for the Linux build!
The only problem I've encountered so far was that the tutorial level doesn't load, it just displays a black screen, but I could navigate back to the menu just fine.
I've managed to talk with the NPC from the third mission with talkable NPCs just fine. I'll do the next missions and I'll keep you posted if anything goes south.
Thanks again for making the Linux build!