City Bus Driver Simulator is a free-to-play bus driving simulation game developed by OB Games for Android devices. The game offers multiple game modes, including Free mode, Career mode, and Checkpoint mode, each with its own unique gameplay style. In Free mode, players can enjoy a leisurely ride around a huge city, following traffic rules or not. Career mode is more challenging, requiring players to obey all traffic rules, wait at traffic lights, and avoid crashes. Checkpoint mode is all about collecting checkpoints within a given time limit, without having to follow traffic rules.

The game features six different customizable buses, each with its own rims and color options. Players can change each bus's properties individually in the garage. The game also offers different huge cities with a realistic traffic system, providing a realistic experience. The tasks in the game become increasingly more challenging, making the game more engaging as you progress. Additionally, players can choose from multiple control options, including sensor, arrow, and steering wheel (left or right side of the screen), and different camera angles.

Overall, City Bus Driver Simulator is a fantastic bus driving simulation game with realistic graphics and sounds, offering a fun and engaging gaming experience.