Xbox and Potentially Steam Controller Holy Grail Profile
I have nearly perfected the Xbox controller support for Ground Branch. I also believe I know how to get it working with the Steam controller. The only major remaining bug is the Secondary Weapon switching bug, and it has been reported to the devs. You can unbind that one if you'd like to use a different binding for switching to secondary, or simply wait until it is fixed.
If you're using a Steam controller, in the steam controller settings, set it to function as an xbox controller, but with no community layout. Then, copy my Input.ini text into your Input.ini and save it, then start up the game. If you're using an xbox controller, it should be as simple as copying my Input.ini text into yours and saving it. Just make sure you have steam controller settings disabled.
The binding list is here, but rather than taking 15 minutes to copy individual bindings, copying the Input.ini file will get you the same results (the sensitivity settings are worth checking out though):
https://steamcommunity.com/app/16900/discussions/0/580551263528223962/
The real star of the show is the Input.ini. Save a copy of yours before proceeding if you want to be able to revert to what you had. Where to find it and how to copy mine is here:
https://steamcommunity.com/app/16900/discussions/0/580551263528245302/
Please try it out, and let me know if it works for you and any tweaks that you think may work better. The secondary weapon bug hits every time you attempt to lower your stance (B + Dpad Down) - it causes you to pull out your secondary - and there's no way around it other than rebinding for now.
If you're curious about the Secondary Weapon bug, here's my understanding of the likely cause:
https://steamcommunity.com/app/16900/discussions/1/580551263528283485/
This profile solves:
Start button not opening pause menu
Tablet binding not working (Y + Dpad Left)
Drop Item binding not working (Y + Dpad Down)
Raise/Lower Weapon not working (B + Dpad Right/Left)
Increase/Decrease Scope Zoom (LT + Dpad Up/Down)
Lean (LT + Left Stick/Right Stick Click)
Freelook (Right Bumper)
...and much more!
Happy gaming!