Upon opening the app for the first time, it may prompt you to install the "ViGEmBus" driver. This is required. Follow the prompts to install it.
is an open-source utility that serves as a critical bridge between modern PC gaming requirements and a vast array of legacy or non-standard input hardware. At its core, the software is designed to emulate an Xbox 360 controller, which has become the industry standard for Windows gaming due to Microsoft's x360ce 41000 link