Director Jacob Chase used to make Haunted Houses for Halloween for many years in which allowed him to practice making practical props and puppets. He hired the legendary Jim Henson's Creature Shop to create a 9 foot (2.74 meter) puppet for the creature for the film to be used alongside CG effects.
Writer and director Jacob Chase's wife works with kids on the spectrum which has allowed him to get close to the community over the years. This is what helped when writing the character of Oliver.
It is based on a 2017 short film.