Heretic promises to "break the dogma" of input devices. The M4P (presumably standing for "Model 4 Pro" or "Mechanical 4-Point") is a hybrid macro pad / analog controller that looks like something a cyberpunk hacker would use to break a mainframe. It abandons standard key layouts for a radial cluster of mechanical switches around a central haptic thumbstick.
The map's design encourages exploration, strategic combat, and clever use of the game's magic-based arsenal. heretic m4p