Abstract: Providing natural human-computer interaction has became one of the major issues as computer usage became popular. Starting from computer familiar users, consideration for non-familiar users including elderly and impaired users gets more attention recently. In this paper, a few approaches to provide natural interface for elderly people are summarized with a couple of experimental results. Our goal is to devise an immersive interface which is a platform providing the motion context. The interface is focused on edutainment contents, based on the observation that computer games for elderly people can be utilized as a tool not only for enjoying themselves but also for improving their health and quality of lives. In this paper, our approaches to use a tabletop interface, u-Table, and its corresponding natural gestures as a user interface for playing games are summarized. Since a table is a good place for people to get together, talk to each other and share their experiences, a tabletop interface can be served as a tool for playing games of cooperation, conversation and sharing. It was demonstrated that its users had better experiences with u-Table comparing to a mouse, a keyboard and a monitor.