SUBROUTINE is an engaging adventure game designed for Mac users, where players take on the role of a technician responsible for preparing humanoid robots for deployment. The game challenges players to inspect mechanical integrity, load firmware, and assess robot behavior, ensuring that any malfunctions are reported and contained. With an immersive gameplay experience, players must navigate through various tasks while managing the complexities of robot maintenance.

The game features stealth gameplay mechanics, allowing players to utilize hiding spots to avoid detection by hostile robots. Additionally, players can uncover hidden narratives by exploring server logs, revealing deeper lore about the facility and its operations. The unpredictable AI of the robots adds an extra layer of challenge, as they are capable of surprising actions that can catch players off guard, making each session a unique experience.