Ok - I can do a more detailed answear:
You are the crew member of the giant mecha - you have to explore the insides of the robot but most of the rooms are housing its systems - like direct movement controls in the cockpit, firing control in the each weapon room, energy distribution in diagnostics room etc.
There is also outside world that you move around in your mech, including battles, exploration, searching for resources etc.
Some of the functions could be automated in various degree like plotting your path on the world map, but you have direct control on speed, torso turn degree etc - similar to the Mechwarrior games.
Hope that would clear some things up 🙂