I am a massive fan of Among the Sleep after finishing it recently (review here), it had a powerful message about parenting in it and I loved the game. I am eager to see what Krillbite can do with Mosaic.
See the teaser here:
Confirmation about Linux support direct from the source:
@gamingonlinux That is the plan! :)— Krillbite Studio (@krillbite) April 29, 2016
The game looks totally surreal and I am looking forward to seeing more of it.