AutoHotkey - The ultimate automation scripting language for Windows.
Monect - Make the best use of sensors on smart device to control PC, simulate steering wheel, game-pad...
Pulover’s Macro Creator - Pulover’s Macro Creator is a Free Automation Tool and Script Generator.
LEA Extended Input - iOS/Android app with windows server to control functions in games via your smartphone/tablet.
AutoKey - A Python 3 port of AutoKey, the desktop automation utility for Linux and X11.
aGamepad - aGamepad allows you to use your Android based phone as gamepad for Windows.