Tom Clancy's Rainbow Six Siege website announces that closed multiplayer alpha testing is underway for Tom Clancy's Rainbow Six Siege, the upcoming installment in the tactical shooter series. They offer instructions on applying, which requires a Uplay account, and warn that all closed alpha operations will be entirely in English and are limited to North America and Europe. There are system requirements, a closed alpha announcement video, and more details on this page, and more in the FAQ.