Civilization VI was originally announced for Linux back in May, since then we've had a lot of silence on it, until today. Aspyr Media seem to be the developer handling it, but they are still investigating if it's viable.
Taken from their blog:
QuoteQ: Is Civ VI available on Linux?
A: Linux is still being investigated as a project. We hope to have clarity in coming months on if a viable version of Civ VI can make it to Linux and will let you know as soon as we have more information.
Aspyr have also been commenting some more on reddit:
QuoteI'm sorry guys. I should know better than to post in here before picking up my toddler for a TexMex dinner. You guys are incredibly active, and that's a huge part of why we love you.
I know its not a detailed statement, but it is absolutely full truth. Just because we are using OGL, that does not automatically translate to a workable Linux port. There are tons of complexities there (as you all well know). We have our team head down on proving that it can be done up to our quality standards. Once we know that, we will share the news.
This is a real shame to see it change from a confirmed port, to only something that's being investigated.
I can only hope if they are unable to do it, that another developer picks it up. I would love to see Aspyr Media handle it though, as their other ports are good and I have a lot of respect for them as developers, but if they can't, then someone else needs to step up.