Daemon X Machina

In the game, the player controls a custom character, who commands an Arsenal mech and engages in battle with other mech enemies. 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. It is also the place where players browse through different missions for both single player and online cooperative multiplayer.

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. They act as humanity's protectors and guardians as the war with the Arms of Immortals (AIs) rages on.

The game entered production around mid 2017. It was announced at E3 2018. Kenichiro Tsukuda, who produced the Armored Core series, served as the game's producer, while Yūsuke Kozaki provided character designs. A limited time special demo was released on February 14, 2019.

The game features a more vibrant color palette in comparison to Armored Core, a choice made by the development team to ensure that the game could be visually appealing and unique. The development team also included inspirations of rock and metal elements into the game's music, created by several composers including Junichi Nakatsuru and Rio Hamamoto of Bandai Namco.

At launch, Daemon X Machina received "mixed or average reviews" according to review aggregator Metacritic. Fellow review aggregator OpenCritic assessed that the game received fair approval, being recommended by 46% of critics.

Daemon X Machina launched at #4 on the Japanese charts, and #19 on the U.K. physical charts. As of October 2019, the game has sold more than 42,217 physical copies in Japan. Marvelous has stated that Daemon X Machina has done "very well" on the Nintendo Switch.