The player avatar's stats, abilities, and appearance can be customized in the Hangar, which serves as the game's main hub.

The Hangar is also the area where players create their custom Arsenal using body parts bought or collected throughout the game.

[1][2] After a moon collided with the Planet, it radiated a special energy that turned artificial intelligence against humanity.

The Outers, a group of pilots who command mechs, gained special abilities after being afflicted by the mysterious energy.

Ultimate hosted a special five-day limited event where players could obtain four spirits featuring characters with their mechs from the game.

[29] In September 2021, Kenichiro Tsukuda confirmed a sequel was in the works on a livestream marking the game's second anniversary.