Aeria Games is opening up beta registration for its upcoming MMOFPS, Repulse. Repulse is a sci-fi MMOFPS that will offer staple multiplayer modes, such as deathmatch, a horde mode, demolition, and capture the flag. Repulse will feature 3 classes to choose from and will have maps that vary from city streets to alien planets. Repulse also offers up numerous weapon types and high mobility action. Sign up for the beta at the Repulse site.