Abstract: Resource discovery is one of the core problems to be solved in the grid.Vega grid suggests a fully distributed resource discovery mechanism: grid router, which works similar to IP router.In order to demonstrate the benefit of grid router and provide a use case, a grid-based online game service platform, called Vega game grid, is designed and implemented.Considering the problems that occurr in the application of grid router, the grid router is improved, including implementing resource request and transfer protocol with UDP protocol, enabling the measurement of the physical network distance between grid routers with IP protocol, discovering resources without their being manually registered on grid router,and improving the SD-RT algorithm with the graph traverse algorithm.