Designer Valentijn Eekels (then age 19) had been thinking about creating a game for quite some time, in order to show the full extent of his skills as a designer; unlike the usual assignments he was taking on through his education and freelance activities. The idea for Day & Night was closely connected to his interest in fantasy and board games. He has gained much experience by being closely involved in the sketching process, coöperating with an illustrator, designing the different elements of the game, and ultimately by handling the promotion of the final product. "When people play Day & Night they set aside their worries for a moment. That people receive so much joy from a game which I am responsible for, is why I do this work in the first place."