The smartphone market has grown significantly over the past few years, while its structure was fully transformed. Currently the two most popular operating systems are the Android with the management of Google and the iOS manufactured by Apple. One of the smart phone market file-closer Windows Phone 7 had been represented long time in the market, but took major steps to strengthen the market position only in the recent years. Because the efforts of Microsoft to get more applications to be made available on the phone, in many countries - including Hungary as well – have been available to the upload of applications to Windows Phone Marketplace. The developers has also free access to the necessary software for develop, such as Visual Studio Integrated Windows Phone emulator and Microsoft Blend. Because of these conditions I aimed at preparing an application for Windows Phone 7 in my thesis. I implement the proposed software with Silverlight framework. The program is a quick turn-based having both single player and two players modes. During the process of the design and development I considered the devices and operating system-specific properties, and for better gaming experience I use sound and visual effects and develop easy handy.