Language is adopted on the basis of language activities. These are listening and speaking, two basic activities, and reading and writing. Starting school children still adopt their mother tongue, which they have learned at home and at school adopt and learn standard language form. The Croatian standard language is one of the idioms of the Croatian language. Children at school learn about language norms, rules, spelling and proofreading of the Croatian standard language and are encouraged to develop the ability to listen, speak, read and write, as well as other interpersonal skills, such as talking or correspondence. Children learn through play and develop their abilities and skills, learn about the world around them, objects, signs, smells, tastes freely and without fear of penalty. The didactic game clearly shows that teaching does not necessarily have to be a lecture and traditional, but playful and purposeful. Language games appear in the teaching of Croatian language. Language games are activities that help children gain some skills without having a feeling of failure and less value. Primary objective of this study was whether language games affect on linguistic creativity in children of younger school age. It was also necessary to examine linguistic diversity, use of dialect in children and whether the lexis in children of younger school age is different regarding to gender, age or place participants come from. It is expected that children will show diversity in the mental lexis, and that language games will affect their creativity.