Fans of the Tribes series of games will want to head over to Hi-Rez Studios' official Tribes: Ascend page to sign up for the beta test of the multiplayer FPS title. Ascend is scheduled to hit beta on November 4th.
Tribes: Ascend is a distinctly different game from the upcoming MMO called Tribes Universe but both are being developed by Hi-Rez. With the obvious tie-in with the IP, it's worth noting here at MMORPG.com.
Find out more about Tribes: Ascend.