The Baby in Yellow is a uniquely styled game that horror enthusiasts cannot overlook. Instead of traditional terrifying, gory scenes, it features a seemingly innocent child, but this is no ordinary infant. Possessing demonic powers, you are tasked with babysitting in a chilling house. The storyline unfolds over three days, where you must care for the diaper-clad baby, yet curiously, the parents' faces remain unseen. As you proceed, you'll notice bizarre occurrences surrounding the baby and unveil many surprising mysteries. While playing, you'll also encounter spine-chilling sensations that will leave you breathless and startled.

On the first day in The Baby in Yellow, you will assume the role of a babysitter, adhering to the tasks outlined for you. As you approach the baby or interact with objects in the house, a hint icon will appear, allowing you to perform actions with a simple click. The tasks you need to accomplish are displayed in the screen's left corner. Routine tasks include fetching milk, changing diapers, and putting the baby to bed. Milk is found in the fridge, and diaper changes occur in the restroom. You'll learn the correct way to change diapers and put the baby to sleep. During these tasks, you will encounter inexplicable phenomena.

At times, you might carry the baby upstairs, only to find it mysteriously reappearing downstairs, crying alone on the sofa. Strange events will continue to unfold after just one day, but you must persist in completing the tasks until the final night. Pay particular attention to the books in the baby's room, which reveal the truth about the demon within the child's body. On the last night, you will face terrifying horrors as the baby reveals its true, frightening form. Successfully completing the tasks before it catches you will lead to victory; failure will result in your demise.