The game advertises to have a linux version on the product detail page here on gog, and on steam as well. I just bought this game, but there is no linux version to download.
Where is it?
It's confirmed to be on Linux, just somewhat later. On Steam it shows being on Mac and Windows only for now too.
Do you have source for that? I am a bit confused, since normally only available versions are listed on GOG and Steam, and for example RockPaperShotgun writes that the games is out today on Windows, Mac and Linux. So i assume it's just a mistake and they didn't submit the Linux Version yet.