The universe of The Cyberiad is pseudo-Medieval. There are kingdoms, knights, princesses, and even dragons in abundance. Robots are usually anthropomorphic, to the point of being divided into sexes. Love and marriage are possible. Physical and mental disabilities, old age and death, particularly in case of accidents or murder, are also common, though mechanical language is used to describe them. Death is theoretically avoidable (by means of repair), and sometimes even reversible.
In fact, the teacher of Trurl and Klapaucius, Master Cerebron, is deceased, but can still be reanimated at his tomb. The level of technology of the vast majority of inhabitants is pseudo-Medieval also, with swords, robotic steeds, and gallows widespread. With this co-exist space travel, extremely advanced technology made by the Constructors and futuristic weapons and devices used or mentioned on occasion. There even exists a civilization that has achieved the "HPLD" – Highest Possible Level of Development.