In this story-driven third-person survival horror game set 300 years in the future, the player takes on the role of Jacob Lee - a victim of fate thrown into the Black Iron Prison, located on Jupiter's moon Callisto maximum security penitentiary. When the inmates begin to transform into monstrous creatures, the prison descends into chaos. In order to survive, Jacob must fight for his safety to escape the Black Iron Prison while uncovering the dark and disturbing secrets buried beneath Callisto's surface. Employing a unique blend of shooting and melee combat, Jacob must constantly adapt his tactics to combat rapidly evolving creatures while discovering new weapons, equipment, and abilities to defeat the growing threat and escape the horrors of Jupiter's Dead Moon.

ENGINEERING PRECISION HORROR
Callisto Protocol is the next generation of survival horror from the mind of Glen Schofield. Combining atmosphere, tension and brutality with terrifying moments of helplessness and humanity, The Callisto Protocol immerses the player in a pulsating story where unspeakable horrors lurk around every corner.

DISCOVER THE SECRETS OF THE UNITED JUPITER COMPANY
Set in the year 2320 on Jupiter's dead moon Callisto, The Callisto Protocol puts the player in the role of Jacob Lee, an inmate of Black Iron Prison. When a mysterious plague throws the moon into chaos, Jacob must face his darkest fears to defeat the bloodthirsty creatures that stalk him as he unravels the dark secrets at the heart of the mighty United Jupiter Society.

BECOME THE MASTER OF BRUTAL, STRATEGIC COMBAT
Callisto Protocol challenges players to master an exciting mix of melee and ranged combat, including the unique gravity weapon once used by the Black Iron guards to control the prison population. Players will be forced to get up close and personal with grotesque opponents, chop off limbs, blow off legs, and get creative with whatever they have at their disposal to survive each life-or-death encounter.

EXPERIENCE THE ISOLATION OF JUPITER'S DEAD MOON
One of the most hostile, isolated places in the universe, Callisto poses a huge threat to Jacob's desperate fight for survival. Players will not only have to deal with the horrors of the Black Iron Prison, but also the centuries-old secrets that infect Jupiter's long-dead moon both above and below the surface.

Day One Edition includes:
- The Callisto Protocol base game
- Retro Prisoner character and weapon skins