Scary Teacher 3D is a mobile game developed by Z & K Games, set in the neighborhood where a scary teacher, Mrs. T, lives. The player's goal is to play a prank on Mrs. T without being detected. The game begins with the player's character, a mischievous student, moving into a new house in the neighborhood. The player soon learns about the horrible teacher who lives next door and how she makes life miserable for the kids in the neighborhood. The player characters decide to get revenge by playing a prank on Mrs. T, but they must do so without getting caught. The game is divided into several levels, each with a different objective. The first level is a tutorial level that introduces the player to the mechanics of the game. In this level, the player must infiltrate Ms. T's house and steal her purse without being discovered.

As the player progresses through the level, the pranks become more complex and Mrs. T becomes more aware of the player's presence. Some of the pranks include stealing Mrs. T's pet cat, putting soap in her bathtub, and setting traps in her house. The game also has a number of power-ups that can help the player character accomplish goals. These power-ups include stealth, speed boosts, and time freezes. These power-ups can be collected by completing certain objectives or by purchasing them with in-game coins. The game also has a feature called "Neighborhood Exploration" that allows players to explore neighborhoods and interact with other characters. Players can also earn in-game currency by completing quests for these characters. The goal of the game is to play a prank on the dreaded teacher, which adds a unique twist to the game, and the game's use of physics adds a layer of depth to the gameplay.