I made a gaming control panel using an Arduino Leonardo to play simulators. Currently using it for DCS World, but it should work in most games just like any joystick / gamepad.
Make an Arcade Controller using an Arduino Leonardo or Micro - Tutorial - YouTube
Arduino Leonardo ETH | Arduino Documentation
Arduino Leonardo Gaming Joystick - YouTube
Welcome for Visiting - Monday Kids Mini Beetle Controller ATmega32u4 for Arduino Leonardo - Bring Fun and Knowledge to Your Kids
How To Program The Pro Micro (atmega32u4) As A USB Gamepad Controller With Arduino - tinkerBOY
Amazon.com: Seeed Studio CANBed - Arduino CAN-Bus Development Kit, ATmega32U4 with Arduino Leonardo Bootloader, MCP2515 and MCP2551 CAN-Bus Controller and Transceiver. : Everything Else
Need some help with a Arduino Leonardo Hitbox : r/fightsticks
Pro Micro With The Bootloader ATmega32U4 5V/16MHz Module Controller Mega32U4 Leonardo For Arduino - AliExpress
Which Arduino to Buy for Making Video Game Controllers? - YouTube