Amazon.com: VR Remote Controller Gamepad Bluetooth Control VR Video, Game, Selfie, Flip E-Book/PPT/Nook Page, Mouse, in Virtual Reality Headset PC Tablet Laptop iPhone Smart Phone : Video Games
PSPad: Mobile Gamepad - Apps on Google Play
Google Stadia lets phone to be used as virtual gamepad with TV - Android Community
Remote Joystick using Sight - NVIDIA Docs
GCVirtualController | Apple Developer Documentation
Android app has now globally enabled virtual gamepad controls. : r/GeForceNOW
Virtual Joystick for Godot 3 - Godot Asset Library