I created this Robot/Mech Walker as a personal practice challenge in Speed Modeling & Rigging for Video Game Asset creation.
This low-poly model uses a Rig with Inverse Kinematics. This project took me about an hour to create. As time goes on, I'll be speeding up this type of workflow, while improving its overall quality.
This Model & Rig (Blender ".blend" File) is available for Free Download on my Gumroad. The Project File includes the Walk Cycle Animation as well.