In Zombie Doctor Rip, players take on the role of a doctor trying to survive in a world overrun by zombies. The game is set in a medical environment, where the player must navigate through a hospital ward while being chased by the undead. The core mechanic of the game is to perform tasks and interact with various objects in the hospital, laying the groundwork for the player's ultimate goal of escaping the facility while ensuring as many patients as possible are treated. Players must move around the hospital, avoiding zombies that block the way, and interact with medical equipment and patients to administer treatments and gather essential supplies. The challenge of the game lies in navigating the hazards of the hospital environment while completing the tasks required to save the patients. As the player progresses, the situation becomes increasingly desperate, with more zombies appearing and scarcer resources available. The game runs in a web browser, requiring no download or registration to play.