Cobaltikar 45

Cobaltikar 45 was normally a peaceful planet with mineral reserves of Cobaltikar ore, which it traded. It was populated by robots that had started off as factory workers but whom had evolved into a new species by the time the Eleventh Doctor visited with Decky Flamboon. One of their kind, Cobalikbot Acorn Delta went rogue and was imprisoned beneath a replica of the Eiffel Tower that was bought in exchange for ore from a Brancheerian. (COMIC: Tower of Power)