HID Remapper Extends Steam Controller Usability Beyond Steam

A May 20 update to HID Remapper adds full Steam Controller support, enabling inputs to work outside Steam on Windows and Linux and making the controller compatible with Nintendo Switch, Android devices, and Xbox Series consoles. All inputs—including trackpads, touch sensors, and accelerometer/gyro—are usable, and there are DIY converter files plus inexpensive pre-built options (as low as about $17.50), though you may need to flash firmware or assemble an enclosure.