At the E3 launch in 2019, Microsoft announced that its xCloud service will be tested publicly in October. As one of the three major hardware vendors in the mainframe game industry and Microsoft's halo as the current top cloud technology and cloud service provider, we can judge whether the current cloud game experience is feasible or not by the performance of xCloud. Before that, I think xCloud should be the most suitable game for strategy, flag, decryption, round-robin role-playing. But Microsoft has taken out the action, race and shooting games on the spot, which are very demanding for delay. It can be seen that Microsoft is very confident in its own technology. After the actual experience, I have to say that xCloud's experience is a little surprising. At this E3 booth site, Microsoft has set up a special booth to provide Biochemical Crisis 7, Halo 5 and War.