TL;DR of the post, generated automatically.

A Blender addon: footsteps along a path, then a walk baked onto a Rigify rig.

• Footsteps: placed along a curve, movable by clicking, works on uneven curves.
• Rig: pick a body type, click bake for a walk with matching timing.
• Extras: arms and head keyed separately, custom walk styles, head can follow an object.