The Door Factory is a first-person horror game that immerses players in the role of an inspector in a mysterious factory where doors arrive one at a time. Each door opens to a unique environment that players must explore. The primary objective is to inspect each room for anomalies, deciding whether to approve the door for production or report any suspicious findings. This gameplay mechanic emphasizes careful observation and decision-making as players navigate through various unsettling scenarios.

The game is designed to evoke psychological horror, utilizing atmosphere and tension to enhance the experience. Players must pay attention to subtle details that might indicate something is amiss, such as objects out of place or strange presences. With a playtime of approximately one hour, The Door Factory challenges players to consider the consequences of their choices, making every decision critical to the outcome.