The rise of Mobile Assisted Language Learning has brought a new dimension and dynamic into language classes. Game-like language learning apps have become a particularly effective way to promote self-learning outside classroom to young learners. This paper describes a system called FLAX that allows teachers to use their own material to build digital library collections that can then be used to create a variety of web and mobile based language games like Hangman, Scrambled Sentences, Split Sentences, Word Guessing, and Punctuation and Capitalization. These games can be easily downloaded on Android handheld systems such as phones and tablets, and are automatically updated whenever new materials are added by teachers through a web-based interface on the FLAX server