Not recognised in games as a controller

[cRazi-man]

I'm having trouble with getting this working. I've uploaded to the Arduino Pro micro and Windows recognises it as a game controller. It recognises all the button presses. But Steam can't see it as a controller and games don't recognise the controller. It is not showing up as an XInput device. Any advice on how to resolve this?

I'm new to Arduino so need things a bit dumbed down please. Thanks