physically impossible for two reasons. 1) the game is made in gm8, a really fucking old engine that probably won't work on mobile all too well 2) the game is just,,,, Not Designed for mobile? like, at all? unless you find a bluetooth controller, this just won't function in the slightest.
We got brawhalla on mobile as if the touch screen ain't enough it can be played by bluetooth controller so i don't see why not. except for those reasons:
-old game engine (as you mentioned to many times)
-not that easy that good online
-too hard to start all over and it'll be very expensive.