The Callisto Protocol is a next-generation take on survival horror that fuses brutal combat with a deeply human story in a terrifying sci-fi world.

In this narrative-driven, third-person survival horror game set 300 years in the future, the player will take on the role of Jacob Lee – a victim of fate thrown into Black Iron Prison, a maximum-security penitentiary located on Jupiter's moon, Callisto. When inmates begin to transform into monstrous creatures, the prison is thrown into chaos. To survive, Jacob must battle his way to safety to escape Black Iron Prison, while uncovering the dark and disturbing secrets buried beneath the surface of Callisto. Using a unique blend of shooting and close-quarters combat, Jacob will need to adapt his tactics to combat the rapidly evolving creatures while scavenging to unlock new weapons, gear, and abilities to outrun the growing threat and escape the horrors of Jupiter's Dead Moon.

The Callisto Protocol challenges players to master a thrilling blend of hand-to-hand and ranged combat, including a unique gravity weapon once used by Black Iron guards to control the prison population. Players will be forced to get up close and personal with their grotesque opponents, hacking off limbs, blasting off legs, and getting creative with whatever is at their disposal to survive each life-or-death encounter.

One of the most hostile, isolated environments in the universe, Callisto looms large over Jacob’s desperate struggle to survive. Players must not only contend with the horrors of Black Iron Prison, but also the centuries-old secrets that plague Jupiter’s long-dead moon, both above and below the surface.

The Callisto Protocol’s all-new Riot Mode is launching tomorrow, an new player experience that’s all about defeating as many enemies as possible.

In Riot Mode, you will take on wave after wave of enemies, while facing increasingly difficult challenges. To add to the fun, you can earn credits that you can use to buy upgrades and loot from crates scattered throughout the arena.

Riot Mode features enemy behavior and wave composition that keep players on their toes. As you progress through the game, you’ll need to adapt your strategies to overcome each new challenge. With only two weapon slots available, you’ll also need to spend credits wisely to upgrade and change weapons and to open health, GRP, and fuse containers. And when things get really tough, activate rampage mode for a temporary buff with unlimited ammo, GRP usage, and enemy insta-kill.

To add to the arcade-like feel, Riot Mode includes a scoring system based on kills and dismemberment, with an overall score keeping track of the player’s progression throughout the game.

Riot Mode is a challenging and entertaining experience that will keep you engaged for hours. The focus on keeping the fight constant and flowing, while also introducing fun sub-systems and a simple gameplay loop, makes it a great addition to The Callisto Protocol. It’s available on May 23, 2022, as part of the Riot Bundle, included with The Callisto Protocol Digital Deluxe Edition, Season Pass, or available for purchase separately. The Riot Bundle also includes eleven new enemy death animations and The Prospector Skin Collection. Are you ready to start a riot?

The Callisto Protocol aims to put the horror back in survival horror and is now available for PS4, PS5, Xbox One, Xbox Series X|S and PC.