Is there support for xbox one controllers in Windows?
Yes. It's a Windows only game and it should work with any controller. Never got around to including joypad configuration but you can change the accelerate and pause buttons by editing the following fields in the "Data/Options.ini" file ..
Turning will be with the d-pad or left analog.
[PLAYER 1]
JOY_ACCEL0 = 1
JOY_PAUSE0 = 2
[PLAYER 2]
JOY_ACCEL1 = 1
JOY_PAUSE1 = 2