アーマード・コアシリーズ
"Armored Core 4" was released on December 21, 2006 for the PlayStation 3, serving as another reboot for the franchise. An Xbox 360 version, the first instance of a main title in the franchise being released outside of the PlayStation ecosystem, was released on March 22, 2007. Gameplay in "Armored Core 4" has been sped up and streamlined from its predecessors in an attempt to make the game more accessible to new players. The game marks the first instance of online multiplayer outside of the Japanese release of "Armored Core 2: Another Age".