Alien Front Online is a 2001 video game released for the Sega Dreamcast exclusively in North America. Alien Front Online is an online version of the arcade game Alien Front, where it was bundled with the Dreamcast Microphone. In the game, players use armored vehicles to fight battles staged in arenas. Players could choose which side they wished to fight for, the aliens or the humans, and could also choose one of three different vehicles; each having its own advantages and disadvantages.