During the First Age of Hollowstar, the Gold King developed a race of androids. While his original idea was to rebuild the human body from scratch, he soon scrapped several body parts in favor of improved combat ability. The android gladiators have only one vital organ: a single lung that acts as an Unbinder Generator.
The androids are capable of thinking very similarly to humans, but they are not social and do not get bored doing the same thing repeatedly. They do not get angry, but they have a combat instinct that will cause them to kill for little or no reason.