This was a semester project in my advanced rigging class; I modeled the main robot, dropship and weapons, and used a variety of Creative Commons models and purchased set pieces. This was the beginning/proof of concept/cold open for a larger project.
This concept has been brewing for about 17 years in one way or another. It started when I made a robot figure while working the board at my old NPR job in grad school, not knowing what his backstory was, other than "something involving being the only surviving robot warrior in an apocalypse, and having to complete one last mission." Jump ahead to now, and I've been taking a few classes when I can in animation, modeling, and exploring what new tools are out there to tell stories with.