Yes, Linux is here.
It might not be compatible with all the distributions, but definitely it works.
Let us know the feedback about that.
We have also implemented a bunch of fixes
Check the whole list here:
http://steamcommunity.com/app/449300/discussions/0/1471967615879197284/
1.4.0 update - Modding and new mouse controls
1.4.0 update introduces the modding possibilities. Most important gameplay files are open for players to be changed to adjust the game exactly to their vision. It is now possible to change spells, units and building stats.
We are waiting for your feedback, so we can keep improving the game.
More details in the discussion:
http://steamcommunity.com/app/449300/discussions/0/2217311444340328486/
1.3.2b update - more fixes
We have posted another update labeled 1.3.2b which includes couple of fixes that helps to improve stability of the game and solving couple of annoying gameplay bugs.
1.3.1c patch - difficulty and balance improvements
With this patch we have implemented a number of changes to spells and units and also make an overhaul of the difficulty system.
For details take a look here:
http://steamcommunity.com/app/449300/discussions/0/350542683196077028/
Patch 1.3.1b released - roads display updated
This is rather small fix, but something we have planned down the road.
Roads are now much better visible on the hills and mountains.
Discuss the issues here.
http://steamcommunity.com/app/449300/discussions/0/360671583800652959/
There is also ongoing sale on iOS and Android versions if you would like to have the game to go.