Keita Iizuka is the game's producer while Kenji Anabuki served as the game's director, both of whom have worked on the Tales series.

Scarlet Nexus was co-developed by Bandai Namco Studios and Tose. The Other Suppression Force (OSF) recruits members with supernatural abilities to protect humanity from the Others, mindless mutants which descend from the Extinction Belt. These substances also grant humans extrasensory superpowers. The game is set in both the near future and an alternate reality where humanity has developed technology and formed a society based on the substances found in human brains. Each companion has their own unique combat abilities, which can then be acquired by the protagonists through an ability named 'brain link'. As players progress, they encounter different party members who assist them in combat. The protagonist's powers can be upgraded through accessing the 'brain map', which serves as the game's skill tree.

While they are equipped with short-range weapons like a sword, both Yuito and Kasane possess the ability of psychokinesis, allowing them to hurl objects and debris at hostile enemies. Players can assume control of either Yuito Sumeragi or Kasane Randall, members of the Other Suppression Force (OSF) who are tasked to defend New Himuka from creatures known as the Others. Scarlet Nexus is an action role-playing game played from a third-person perspective.

Scarlet nexus demo release date