The eighth installment in the mech combat series, Armored Core Nexus enables up to four simultaneous players to play online. The game ships on two discs. The first, labeled "Revolution," contains remakes of old missions from the series. The other disk, labeled "Evolution," contains completely new content. Gameplay changes include custom scenarios that change depending on the player's choices, an enhanced mech upgrade system, better graphics, tougher rivals, and full-fledged online play.