Abstract: In examination of reason why people play videogames, multiple authors lean on the theory proposed by the Professor of Psychology Mihaly Csikszentmihalyi – the concept of flow (flow state). The author is known for his research in the area of happiness, creativity and subjective wellbeing. The so-called “effect of immersion” is described by complete absorption and endeavor to success. Presence in the flow state is not limited by a specific sphere or process; it is applied to all fields of activity that an individual is involved in. The article provides a definition to the concept of “flow”, indicated the main conditions and characteristics of flow state, as well as explores the model of flow state. The relevance of studying motivation of computer games is reflected. Motivational qualities of the users within the framework of the “flow” concept are outlined. The author analyzes the case of a gamer who attempt to improve his skills in videogame, with consideration of results of the process depending on correlation “capabilities / complexity of the task”. The types of motivation of computer gamers are determined.