Many people play mobile games as entertainment in their free time. These mobile games may be addictive and time consuming, so people who are addicted to these mobile games may not have time to make friends anymore. To address this issue, this study established a "Playmate" platform to analyze members' information and favorite games through the big data analysis, and to use the result of such analysis to match friends of members. After successful pairing members, these members can play games on line together and discuss the gaming strategies and chat on line. The platform will also provide online market so members can obtain relevant consumer discounts through the purchase of "virtual currencies". It is intended that the online game world will expand the business opportunities from online to offline.