Is there a controller/Gamepad support on Linux for This war of mine?

I use an Xbox360 wireless controller and it seems it is not detected. (This is a very well supported gamepad on Linux)

By the way, this change logs seems to says that gamepad should work :

Update 5.0 (30 November 2018)
Added macOS support
Added Linux support
Modding tools are back!
Game controller support is back as well!
Fixed time passing bug in Stories DLC

I'm currently using version 5.1.0 (This War of Mine: Soundtrack Edition)

Any help would be really appreciated !

(Please do not answer to say playing with keyboard and mouse is better for this game ...)