The following report is made by Jesper Annebäck and Carl Henrik Klåvus who attend the Computer Science program at Kungliga Tekniska högskolan. This essay is written in order to achieve a Bachelor's degree in the field of computer science. Today's top five games for modern mobile phones, smartphones, on the market are either turned-based multiplayer or singleplayer games, unlike the case you see at the market for PC games where the real-time multiplayer genre is the most favored choice. Therefor there is a large possible market for real-time multiplayer games on mobile platforms if the requirements for these kind of games are met. This report addresses the issue of real-time multiplayer gaming on smartphones in aspect of hardware performance and 3G latencies. This paper will describe the fundamentals of 3G networks in Europe and what can be done in application level to reduce the feeling of latency in multiplayer games. The measurements made in the study of latency over different network mediums were conducted 10th of April 2012. The results from the study shows that lag compensation is important when developing games that will be used by smartphones using 3G and that the hardware on today's smartphones can render simple 3D graphics.