Code Vein II is an action role-playing game set in a post-apocalyptic world where Revenants are being transformed into hostile "Horrors." A Revenant Hunter must partner with a time-manipulating companion named Lou.

Gameplay features third-person action combat and deep RPG progression, emphasizing specialized Blood-based mechanics and character customization. An evolved Partner System enhances tactical cooperation with AI companions during exploration and high-difficulty boss encounters. Success depends on mastering diverse weaponry and temporal abilities to survive a world defined by memory and ruin.

Due to the influence of the Luna Rapacis, Revenants have transformed into Horrors.

The order once maintained by the Revenants has already been lost, and the world is once again heading toward destruction.

After the collapse of the world caused by the Resurgence, Revenants with the power to oppose the Horrors govern, maintaining order within human society.

To save the world from destruction, you join forces with a Revenant who shares your mission and head into a deadly world.