Randomly generated character number 56, THE LOST VOLT! Courtesy of my character generator: [link]
"The Lost Volt was once Explorobot-37 and a member/tool of a group of interplanetary explorers charting new worlds and their moons. Tragedy in the form of a stampede of gigantic herd animals befell the party resulting in the destruction of the crew and their space craft. With their last ounce of strength, one scientist, whose name has been lost in time, managed to transfer his consciousness to the atomic powered Explorobot-37. The Lost Volt now explores his primitive prison world in hope of finding a way home."
I'm thinking a sci-fi meets Conan via Robinson Crusoe.