This resource outlines each step in the process to develop the User Simulation Activity, which was used for the Making Zero Count Project. The value of using an exercise like this was repeatedly affirmed by community members. Community members shared that the simulation goes beyond “head knowledge” for how to end homelessness. It challenged the often subtle and subconscious beliefs and attitudes that reinforced stigmas for those experiencing homelessness. The experiential aspect of the simulation is a key part of building greater empathy for people experiencing homelessness.