Codementum is a fun and educational game environment where students learn to code in a real programming language, no previous experience needed. With a synchronized text-based and block-based coding system, children can switch between text and code blocks at any time. Children can develop creative and fun mobile games/apps for IOS and Android platforms, with the help of an online trainer in both Python and JavaScript programming languages. Teachers can use this platform to provide a successful and comprehensive CS education by using all of the curriculum, intuitive tools, and resources provided by the platform.They can also follow up the progress of their students. Students can learn all the subjects of Python and JavaScript languages in a gamified way by solving the challenges. They can also use the documents within the challenges in which the subjects are explained in detail with their theoretical and practical aspects. Students can also develop their own mobile games and apps by means of a tutorial.