A mobile sequel, "Fantasy Earth Genesis", was developed by Asobimo under supervision from Square Enix for Android and iOS. It was originally scheduled for a Western release in partnership with Quantum Games, and made available for pre-registration. Its gameplay was a multiplayer online battle arena-style title sharing the parent game's 50-versus-50 player battles and summoned monsters. The title was proposed by Asobimo to Square Enix in 2015 as a mobile MMO using the "Fantasy Earth" IP. The title was aimed both at newcomers to the game and veteran players of "Fantasy Earth". The biggest challenge presented to the developers was adapting a PC-focused gameplay loop into the limited control options of a mobile title, in addition to the technical difficulties of replicating the original's large-scale battles. The team used assets from "Fantasy Earth Zero" to create the character models and environments. At release, it saw a mixed popular reception. Despite extensive support, Square Enix announced that it was becoming difficult to provide a satisfactory experience. "Genesis" ended service on March 31, 2020.