I know a linux port is planned, but until then ... has anyone tried running it under WINE?

Yup, just starting to play. It looks that it works like a charm. The game is built on Unity.

I'm glad to hear. but I would need wine64 for it, right?

Not sure if needed, but I'm on 64, indeed.

I'm also on 64bit linux, but usually wine is 32bit only, so you can only run 32bit .EXE files, even though your linux is 64 bit. There is a 64bit version of wine which runs also 64bit .EXE files, but there are curently no packages for my distro and it seems to be a bit of a hassle to set up.

From what I get it seems that you are running it with a 32bit wine, cause otherwise I'm sure you'ld know ;)

I'm confused because the requirements for the game are 64bit windows only.

I'm quite sure :) I'm using Wine 2.20 staging and chosen 64bit. I'm always installing with PlayOnLinux to make the whole process simpler and to make easier to switch Wine versions. In this case quite sure I've checked 64bit.

Ok thanks!

Maybe I'll give it a try and if it does not work for me wait for the native linux version.

In case anyone wonders:

The game definitely needs a 64bit version of wine.
I compiled a WOW64 version of wine as described here. I am currently playing the game with Wine 3.0rc2 and it runs fine, however there is a crash when I exit the game, but it's no bother.

Thanks for your efforts! It's great game and I hope it will be available for the best OS on Earth ;)

And - by the way - there is no crash at exit in my case. I've installed the game through PlayOnLinux (however no script used, just pure Wine). If I may help somehow or provide some info/data to make your investigation easier, let me know.